# The James Webb Space Telescope Mission

Jonathan P. Gardner NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Email<EMAIL_ADDRESS>John C. Mather
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Randy Abbott  Ball Aerospace & Technologies Corp., 1600 Commerce Street,
Boulder, CO 80301, USA  Retired  James S. Abell  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Mark Abernathy  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Faith E. Abney  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  John G. Abraham NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Roberto Abraham Department of
Astronomy & Astrophysics, University of Toronto, 50 St. George Street,
Toronto, ON M5S 3H4, Canada  Dunlap Institute for Astronomy and Astrophysics,
University of Toronto, 50 St George Street, Toronto, ON M5S 3H4, Canada  Yasin
M. Abul-Huda Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Scott Acton  Ball Aerospace & Technologies Corp.,
1600 Commerce Street, Boulder, CO 80301, USA  Cynthia K. Adams  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Evan Adams
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  David S. Adler  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Maarten Adriaensen European Space Agency, HQ
Daumesnil, 52 rue Jacques Hillairet, 75012 Paris, France  Jonathan Albert
Aguilar Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Mansoor Ahmed  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Nasif S. Ahmed  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Tanjira Ahmed  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt,
MD 20771, USA  Rüdeger Albat  European Space Agency, HQ Daumesnil, 52 rue
Jacques Hillairet, 75012 Paris, France  Loïc Albert Institut de Recherche sur
les Exoplanètes (iREx), Université de Montréal, Département de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  Stacey Alberts
Steward Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ
85721, USA  David Aldridge  Honeywell Aerospace #100, 303 Terry Fox Drive,
Ottawa, ON K2K 3J1, Canada  Mary Marsha Allen  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Shaune S. Allen
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Martin Altenburg  Airbus Defence and Space GmbH, Ottobrunn, Germany  Serhat
Altunc  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Jose Lorenzo Alvarez European Space Agency, European Research &
Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Javier Álvarez-Márquez Centro de Astrobiología (CAB, CSIC-INTA),
Carretera de Ajalvir, E-28850 Torrejón de Ardoz, Madrid, Spain  Catarina Alves
de Oliveira European Space Agency, European Space Astronomy Centre, Camino
bajo del Castillo, s/n, Urbanización Villafranca del Castillo, 28692
Villanueva de la Cañada, Madrid, Spain  Leslie L. Ambrose  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Satya M.
Anandakrishnan  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Gregory C. Andersen  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Harry James Anderson  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Jay Anderson
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Kristen Anderson  Northrop Grumman, One Space Park, Redondo Beach,
CA 90278, USA  Sara M. Anderson  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Julio Aprea  European Space Agency,
HQ Daumesnil, 52 rue Jacques Hillairet, 75012 Paris, France  Benita J. Archer
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Jonathan W. Arenberg Northrop Grumman, One Space Park, Redondo Beach, CA
90278, USA  Ioannis Argyriou Instituut voor Sterrenkunde, KU Leuven,
Celestijnenlaan 200D, Bus-2410, 3000 Leuven, Belgium  Santiago Arribas Centro
de Astrobiología (CAB, CSIC-INTA), Carretera de Ajalvir, E-28850 Torrejón de
Ardoz, Madrid, Spain  Étienne Artigau Institut de Recherche sur les
Exoplanètes (iREx), Université de Montréal, Département de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  Amanda Rose Arvai
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Paul Atcheson  Ball Aerospace & Technologies Corp., 1600 Commerce
Street, Boulder, CO 80301, USA  Retired  Charles B. Atkinson  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Jesse Averbukh Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Cagatay Aymergen  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  John J. Bacinski  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Wayne E. Baggett  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Giorgio Bagnasco  European Space Agency, European Research & Technology
Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Lynn L.
Baker  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Vicki Ann Balzano  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Kimberly A. Banks  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  David A. Baran
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Elizabeth A. Barker  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Larry K. Barrett  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Bruce O. Barringer  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Allison Barto Ball Aerospace & Technologies Corp., 1600 Commerce Street,
Boulder, CO 80301, USA  William Bast  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Pierre Baudoz LESIA, Observatoire
de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, 5
place Jules Janssen, 92195 Meudon, France  Stefi Baum  Faculty of Science, 230
Machray Hall, 186 Dysart Road, University of Manitoba, Winnipeg, MB Canada R3T
2N2  Thomas G. Beatty  Department of Astronomy, University of Wisconsin,
Madison, Madison, WI 53706  Mathilde Beaulieu  Université Côte d’Azur,
Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, F-06108 Nice,
France.  Kathryn Bechtold Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Tracy Beck Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Megan M. Beddard
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Charles Beichman NASA Exoplanet Science Institute/IPAC, Jet
Propulsion Laboratory, California Institute of Technology, 1200 E California
Blvd, Pasadena, CA 91125  Larry Bellagama  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Pierre Bely  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Retired  Timothy W. Berger
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Louis E.
Bergeron  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Antoine Darveau-Bernier Institut de Recherche sur les
Exoplanètes (iREx), Université de Montréal, Département de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  Maria D. Bertch
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Charlotte Beskow  European Space Agency, HQ Daumesnil, 52 rue
Jacques Hillairet, 75012 Paris, France  Laura E. Betz  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Carl P. Biagetti
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Stephan Birkmann European Space Agency, Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA  Kurt F. Bjorklund
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  James D.
Blackwood  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Ronald Paul Blazek  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Stephen Blossfeld  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Marcel Bluth  KBR, 7701
Greenbelt Road, Greenbelt, MD 20770  Anthony Boccaletti LESIA, Observatoire de
Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, 5 place
Jules Janssen, 92195 Meudon, France  Martin E. Boegner Jr  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Ralph C.
Bohlin Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  John Joseph Boia  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Torsten Böker European Space Agency,
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218,
USA  N. Bonaventura Cosmic Dawn Center (DAWN), Niels Bohr Institute,
University of Copenhagen, Jagtvej 128, DK-2200, Denmark  Nicholas A. Bond
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Adnet Systems, Inc., 6720B Rockledge Drive, Suite # 504, Bethesda, MD 20817,
USA  Kari Ann Bosley  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Rene A. Boucarut  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Patrice Bouchet
Laboratoire AIM Paris-Saclay, CEA-IRFU/SAp, CNRS, Université Paris Diderot,
F-91191 Gif-sur-Yvette, France  Jeroen Bouwman Max Planck Institute for
Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany  Gary Bower  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Ariel S. Bowers  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Charles W. Bowers  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Leslye A. Boyce  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Christine T. Boyer  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Martha L. Boyer Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael Boyer  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Robert Boyer  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Larry D. Bradley Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Gregory R. Brady Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Bernhard R. Brandl Leiden Observatory, Leiden University, PO Box 9513, 2300 RA
Leiden, The Netherlands  Judith L. Brannen  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  David Breda  Jet Propulsion
Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena,
CA, 91109, USA  Harold G. Bremmer  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  David Brennan  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Pamela A. Bresnahan  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Stacey N. Bright Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Brian J. Broiles  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Asa
Bromenschenkel  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Brian H. Brooks  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Keira J. Brooks  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Bob Brown  Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder,
CO 80301, USA  Retired  Bruce Brown  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Thomas M. Brown Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Barry W. Bruce  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Retired
Jonathan G. Bryson  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Edwin D. Bujanda  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Blake M. Bullock  Northrop Grumman, One Space
Park, Redondo Beach, CA 90278, USA  A. J. Bunker  Department of Physics,
University of Oxford, Denys Wilkinson Building, Keble Road, Oxford, OX1 3RH,
UK  Rafael Bureo  European Space Agency, European Research & Technology
Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Irving
J. Burt  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  James Aaron Bush  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Howard A. Bushouse Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Marie C.
Bussman  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Olivier Cabaud  European Space Agency, HQ Daumesnil, 52 rue
Jacques Hillairet, 75012 Paris, France  Steven Cale  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Charles D. Calhoon  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Humberto Calvani  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Alicia M. Canipe  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Francis M. Caputo
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Mihai Cara Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Larkin Carey  Ball Aerospace & Technologies
Corp., 1600 Commerce Street, Boulder, CO 80301, USA  Michael Eli Case  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Thaddeus Cesari  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Lee D. Cetorelli  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Don R. Chance  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Lynn Chandler  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt,
MD 20771, USA  Dave Chaney  Ball Aerospace & Technologies Corp., 1600 Commerce
Street, Boulder, CO 80301, USA  George N. Chapman  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  S. Charlot
Sorbonne Université, UPMC-CNRS, UMR7095, Institut d’Astrophysique de Paris,
F-75014 Paris, France  Pierre Chayer Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Jeffrey I. Cheezum  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Bin Chen  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Christine H. Chen Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Brian Cherinka Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Sarah C. Chichester  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Zachary S. Chilton  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Dharini Chittiraibalan  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Mark Clampin
NASA Headquarters, 300 E Street SW, Washington, DC 20546, USA  Charles R.
Clark  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Kerry W. Clark  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Stephanie M. Clark  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Edward E.
Claybrooks  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Keith A. Cleveland  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Andrew L. Cohen  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Lester M. Cohen  The Center for
Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA  Knicole D. Colón
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Benee L. Coleman  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Luis Colina Centro de Astrobiología (CAB, CSIC-
INTA), Carretera de Ajalvir, E-28850 Torrejón de Ardoz, Madrid, Spain  Brian
J. Comber  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Thomas M. Comeau Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Thomas Comer  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Alain Conde Reis
European Space Agency, HQ Daumesnil, 52 rue Jacques Hillairet, 75012 Paris,
France  Dennis C. Connolly  NASA Goddard Space Flight Center, 8800 Greenbelt
Rd, Greenbelt, MD 20771, USA  Kyle E. Conroy Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Adam R. Contos
Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301,
USA  Moog Space and Defense Group, 5025 N Robb St, Suite 500, Arvada, CO
80033, USA  James Contreras  Ball Aerospace & Technologies Corp., 1600
Commerce Street, Boulder, CO 80301, USA  Neil J. Cook Institut de Recherche
sur les Exoplanètes (iREx), Université de Montréal, Département de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  James L. Cooper
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Rachel Aviva Cooper Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Michael F. Correia  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Matteo Correnti  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Christophe Cossou Université Paris-Saclay, Université de Paris, CEA, CNRS,
AIM, F-91191 Gif-sur-Yvette, France  Brian F. Costanza  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Alain Coulais LERMA (CNRS) &
Observatoire de Paris, Paris, France  Colin R. Cox  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Ray T. Coyle
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Misty M.
Cracraft Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Alberto Noriega-Crespo Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Keith A. Crew  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Gary J.
Curtis  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Bianca Cusveller  European Space Agency, European Research &
Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Cleyciane Da Costa Maciel  European Space Agency, Centre Spatial
Guyanais, BP816 – Route Nationale 1, 97388 Kourou CEDEX, French Guiana
Christopher T. Dailey  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Frédéric Daugeron  European Space Agency, HQ
Daumesnil, 52 rue Jacques Hillairet, 75012 Paris, France  Greg S. Davidson
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  James E.
Davies  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Katherine Anne Davis  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Michael S. Davis  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Ratna Day
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Daniel de Chambure  European Space Agency, Centre Spatial Guyanais, BP816 –
Route Nationale 1, 97388 Kourou CEDEX, French Guiana  European Space Agency,
HQ Daumesnil, 52 rue Jacques Hillairet, 75012 Paris, France  Pauline de Jong
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Retired  Guido De Marchi
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Bruce H. Dean  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  John E.
Decker  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Retired  Amy S. Delisa  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Lawrence C. Dell  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Gail Dellagatta
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Retired  Franciszka Dembinska  European Space Agency, HQ Daumesnil, 52 rue
Jacques Hillairet, 75012 Paris, France  Sandor Demosthenes  Ball Aerospace &
Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA  Nadezhda M.
Dencheva Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Philippe Deneu  Centre national d’études spatiales, Direction
des Lanceurs, 52 rue Jacques Hillairet, 75612 Paris CEDEX, France  William W.
DePriest  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Jeremy Deschenes  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Nathalie Dethienne  Centre national
d’études spatiales, Direction des Lanceurs, 52 rue Jacques Hillairet, 75612
Paris CEDEX, France  Örs Hunor Detre Max Planck Institute for Astronomy,
Königstuhl 17, D-69117 Heidelberg, Germany  Rosa Izela Diaz  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Daniel
Dicken UK Astronomy Technology Centre, Royal Observatory Edinburgh, Blackford
Hill, Edinburgh EH9 3HJ, UK  Audrey S. DiFelice  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Matthew Dillman
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Maureen O. Disharoon  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Ewine F. van Dishoeck Leiden
Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
William V. Dixon Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Jesse B. Doggett  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Keisha L.
Dominguez  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Thomas S. Donaldson  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Cristina M. Doria-Warner  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Tony
Dos Santos  European Space Agency, Centre Spatial Guyanais, BP816 – Route
Nationale 1, 97388 Kourou CEDEX, French Guiana  Heather Doty  Ball Aerospace &
Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA  Robert E.
Douglas, Jr  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  René Doyon Institut de Recherche sur les
Exoplanètes (iREx), Université de Montréal, Département de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  Alan Dressler
The Observatories, The Carnegie Institution for Science, 813 Santa Barbara
St., Pasadena, CA 91101, USA  Jennifer Driggers  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Phillip A. Driggers  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Jamie L. Dunn  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt,
MD 20771, USA  Kimberly C. DuPrie  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Jean Dupuis  Canadian Space Agency,
6767 Route de l’Aéroport, Saint-Hubert, QC J3Y 8Y9, Canada  John Durning  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Retired  Sanghamitra B. Dutta  NASA Headquarters, 300 E Street SW, Washington,
DC 20546, USA  Nicholas M. Earl  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Paul Eccleston RAL Space, STFC,
Rutherford Appleton Laboratory, Harwell, Oxford, Didcot OX11 0QX, UK  Pascal
Ecobichon  Centre national d’études spatiales, Direction des Lanceurs, 52 rue
Jacques Hillairet, 75612 Paris CEDEX, France  Eiichi Egami  Steward
Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA
Ralf Ehrenwinkler  Airbus Defence and Space GmbH, Ottobrunn, Germany  Jonathan
D. Eisenhamer  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Michael Eisenhower  The Center for Astrophysics, 60
Garden Street, Cambridge, MA 02138, USA  Daniel J. Eisenstein The Center for
Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA  Zaky El Hamel
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Michelle L. Elie  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
James Elliott  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Kyle Wesley Elliott  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael Engesser
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Néstor Espinoza Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Odessa Etienne  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Mireya Etxaluze
RAL Space, STFC, Rutherford Appleton Laboratory, Harwell, Oxford, Didcot OX11
0QX, UK  Leah Evans  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Luce Fabreguettes  European Space Agency, HQ
Daumesnil, 52 rue Jacques Hillairet, 75012 Paris, France  Massimo Falcolini
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Patrick R. Falini  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Curtis Fatig  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt,
MD 20771, USA  Retired  Matthew Feeney  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Lee D. Feinberg  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Raymond Fels European Space Agency, European Research & Technology Centre,
Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Nazma Ferdous
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Henry C. Ferguson Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Laura Ferrarese NRC Herzberg, 5071
West Saanich Rd, Victoria, BC V9E 2E7, Canada  Marie-Héléne Ferreira  European
Space Agency, Centre Spatial Guyanais, BP816 – Route Nationale 1, 97388 Kourou
CEDEX, French Guiana  Pierre Ferruit European Space Agency, European Space
Astronomy Centre, Camino bajo del Castillo, s/n, Urbanización Villafranca del
Castillo, 28692 Villanueva de la Cañada, Madrid, Spain  European Space Agency,
European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG
Noordwijk, The Netherlands  Malcolm Ferry  Lockheed Martin Advanced Technology
Center, 3251 Hanover St., Palo Alto, CA 94304  Joseph Charles Filippazzo Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Daniel Firre  European Space Agency, European Space Operations Centre, Robert-
Bosch-Strasse 5, 64293 Darmstadt, Germany  Mees Fix  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Nicolas Flagey
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Kathryn A. Flanagan  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Scott W. Fleming Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael
Florian  Steward Observatory, University of Arizona, 933 N. Cherry Ave,
Tucson, AZ 85721, USA  James R. Flynn  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Luca Foiadelli  European Space Agency, European
Space Operations Centre, Robert-Bosch-Strasse 5, 64293 Darmstadt, Germany
Mark R. Fontaine  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Retired  Erin Marie Fontanella  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Peter
Randolph Forshay  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Elizabeth A. Fortner  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Ori D. Fox Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Alexandro P. Framarini  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  John I. Francisco  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Randy Franck  Ball Aerospace &
Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA  Marijn Franx
Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The
Netherlands  David E. Franz  NASA Goddard Space Flight Center, 8800 Greenbelt
Rd, Greenbelt, MD 20771, USA  Scott D. Friedman Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Katheryn E.
Friend  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  James
R. Frost  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Henry Fu  Northrop Grumman, One Space Park, Redondo Beach, CA
90278, USA  Alexander W. Fullerton Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Lionel Gaillard  European Space
Agency, European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200
AG Noordwijk, The Netherlands  Sergey Galkin  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Ben Gallagher
Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301,
USA  TMT International Observatory, 100 W. Walnut Street, Suite 300, Pasadena,
CA, 91124, USA  Anthony D. Galyer  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Macarena García Marín European Space
Agency, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD 21218, USA  Lisa E. Gardner  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Dennis Garland  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Bruce
Albert Garrett  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Danny Gasman Instituut voor Sterrenkunde, KU
Leuven, Celestijnenlaan 200D, Bus-2410, 3000 Leuven, Belgium  András Gáspár
Steward Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ
85721, USA  René Gastaud  Laboratoire AIM Paris-Saclay, CEA-IRFU/SAp, CNRS,
Université Paris Diderot, F-91191 Gif-sur-Yvette, France  Daniel Gaudreau
Canadian Space Agency, 6767 Route de l’Aéroport, Saint-Hubert, QC J3Y 8Y9,
Canada  Peter Timothy Gauthier  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Vincent Geers UK Astronomy Technology
Centre, Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK
Paul H. Geithner  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Mario Gennaro Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  John Gerber  Ball Aerospace
& Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA  Retired
John C. Gereau  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Robert Giampaoli  Northrop Grumman, One Space Park, Redondo Beach, CA 90278,
USA  Giovanna Giardino European Space Agency, Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA  Paul C. Gibbons
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Karolina Gilbert  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Larry Gilman  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Julien H. Girard Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Mark E. Giuliano
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Konstantinos Gkountis  European Space Agency, HQ Daumesnil, 52 rue
Jacques Hillairet, 75012 Paris, France  Alistair Glasse UK Astronomy
Technology Centre, Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9
3HJ, UK  Kirk Zachary Glassmire  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Adrian Michael Glauser ETH Zurich,
Wolfgang-Pauli-Str 27, CH-8093 Zurich, Switzerland  Stuart D. Glazer  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Joshua Goldberg  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  David A. Golimowski  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Shireen P.
Gonzaga  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Karl D. Gordon Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Shawn J. Gordon  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Paul Goudfrooij Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael
J. Gough  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Adrian J. Graham  European Space Agency, European Research &
Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Christopher M. Grau  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Joel David Green Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Gretchen
R. Greene Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Thomas P. Greene NASA Ames Research Center, Space Science and
Astrobiology Division, MS 245-6, Moffett Field, CA, 94035, USA  Perry E.
Greenfield Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Matthew A. Greenhouse  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Thomas R. Greve DTU
Space, Technical University of Denmark. Building 328, Elektrovej, 2800 Kgs.
Lyngby, Denmark  Edgar M. Greville  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Stefano Grimaldi  Ball Aerospace &
Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA  Frank E.
Groe  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Andrew
Groebner  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  David M. Grumm  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Timothy Grundy  RAL Space, STFC,
Rutherford Appleton Laboratory, Harwell, Oxford, Didcot OX11 0QX, UK  Manuel
Güdel Dept. of Astrophysics, University of Vienna, Türkenschanzstr 17, A-1180
Vienna, Austria  Pierre Guillard Sorbonne Université, UPMC-CNRS, UMR7095,
Institut d’Astrophysique de Paris, F-75014 Paris, France  John Guldalian
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Christopher A.
Gunn  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Anthony Gurule  Ball Aerospace & Technologies Corp., 1600 Commerce
Street, Boulder, CO 80301, USA  Irvin Meyer Gutman  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Paul D. Guy  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Deceased  Benjamin Guyot  European Space Agency, HQ Daumesnil, 52 rue Jacques
Hillairet, 75012 Paris, France  Warren J. Hack  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Peter Haderlein
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove
Dr., Pasadena, CA, 91109, USA  James B. Hagan  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Andria Hagedorn
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Kevin Hainline
Steward Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ
85721, USA  Craig Haley  Honeywell Aerospace #100, 303 Terry Fox Drive,
Ottawa, ON K2K 3J1, Canada  Maryam Hami  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Forrest Clifford Hamilton
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Jeffrey Hammann  Northrop Grumman, One Space Park, Redondo Beach,
CA 90278, USA  Heidi B. Hammel Associated Universities for Research in
Astronomy, Inc., 1331 Pennsylvania Avenue NW, Suite 1475, Washington, DC
20004, USA  Christopher J. Hanley  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Carl August Hansen  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Bruce
Hardy  Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO
80301, USA  Retired  Bernd Harnisch  European Space Agency, European Research
& Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Retired  Michael Hunter Harr  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Pamela Harris  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Jessica Ann
Hart  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  George F. Hartig  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Hashima Hasan  NASA Headquarters, 300
E Street SW, Washington, DC 20546, USA  Kathleen Marie Hashim  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Ryan
Hashimoto  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Sujee J. Haskins  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Robert Edward Hawkins  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Deceased  Brian
Hayden Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  William L. Hayden  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Mike Healy  European Space
Agency, European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200
AG Noordwijk, The Netherlands  Karen Hecht  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Vince J. Heeg  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Reem Hejal  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Kristopher A. Helm
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Nicholas J.
Hengemihle  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Thomas Henning Max Planck Institute for Astronomy, Königstuhl 17,
D-69117 Heidelberg, Germany  Alaina Henry Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Ronald L. Henry  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Katherine Henshaw  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Scarlin Hernandez  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Donald C.
Herrington  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Astrid Heske  European Space Agency, European
Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk,
The Netherlands  Brigette Emily Hesman  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  David L. Hickey  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Bryan N. Hilbert  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Dean C. Hines Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael R. Hinz  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Michael Hirsch
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Robert S.
Hitcho  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Klaus Hodapp Institute for Astronomy, 640 N Aohoku Pl Hilo, HI
96720, USA  Philip E. Hodge  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Melissa Hoffman Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Sherie T.
Holfeltz Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Bryan Jason Holler Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Jennifer Rose Hoppa  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Scott
Horner NASA Ames Research Center, Space Science and Astrobiology Division, MS
245-6, Moffett Field, CA, 94035, USA  Joseph M. Howard  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Richard J. Howard
NASA Headquarters, 300 E Street SW, Washington, DC 20546, USA  Retired  Jean
M. Huber  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Joseph S. Hunkeler Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Alexander Hunter  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  David
Gavin Hunter  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Spencer W. Hurd  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Brendan J. Hurst  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  John B.
Hutchings  NRC Herzberg, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
Jason E. Hylan  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Luminita Ilinca Ignat  Canadian Space Agency, 6767
Route de l’Aéroport, Saint-Hubert, QC J3Y 8Y9, Canada  Garth Illingworth
UCO/Lick Observatory, University of California, Santa Cruz, CA 95064  Sandra
M. Irish  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  John C. Isaacs III  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Wallace C. Jackson Jr  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Daniel T. Jaffe  The
University of Texas at Austin, Department of Astronomy RLM 16.342, Austin, TX
78712  Jasmin Jahic  Northrop Grumman, One Space Park, Redondo Beach, CA
90278, USA  Amir Jahromi  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Peter Jakobsen Cosmic Dawn Center (DAWN), Niels Bohr
Institute, University of Copenhagen, Jagtvej 128, DK-2200, Denmark  Bryan
James  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  John C. James  NASA Goddard Space Flight Center, 8800 Greenbelt
Rd, Greenbelt, MD 20771, USA  LeAndrea Rae James  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  William Brian
Jamieson Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Raymond D. Jandra  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Ray Jayawardhana Department of Astronomy, Cornell
University, Ithaca, NY 14853, USA  Robert Jedrzejewski  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Basil S.
Jeffers  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Peter Jensen  European Space Agency, European Research &
Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Egges Joanne  Ball Aerospace & Technologies Corp., 1600 Commerce
Street, Boulder, CO 80301, USA  Retired  Alan T. Johns  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Carl A. Johnson
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Eric L. Johnson  NASA Goddard Space Flight Center, 8800 Greenbelt
Rd, Greenbelt, MD 20771, USA  Patricia Johnson  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Phillip Stephen
Johnson  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Thomas K. Johnson  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Timothy W. Johnson  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Doug
Johnstone NRC Herzberg, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P
5C2, Canada  Delphine Jollet  European Space Agency, European Research &
Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Danny P. Jones  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Gregory S. Jones  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Olivia C. Jones UK Astronomy
Technology Centre, Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9
3HJ, UK  Ronald A. Jones  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Vicki Jones  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Ian J. Jordan Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Margaret
E. Jordan  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Reginald Jue  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Mark H. Jurkowski  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Grant Justis  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Kay Justtanont Dept. of Space, Earth and Environment, Chalmers University of
Technology, Onsala Space Observatory, S-43992 Onsala, Sweden  Catherine C.
Kaleida  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Jason S. Kalirai Johns Hopkins University Applied Physics
Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723, USA  Phillip Cabrales
Kalmanson  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Lisa Kaltenegger Department of Astronomy, Cornell
University, Ithaca, NY 14853, USA  Jens Kammerer Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Samuel K. Kan
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Graham Childs
Kanarek  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Shaw-Hong Kao  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Diane M. Karakla  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Hermann
Karl  Airbus Defence and Space GmbH, Ottobrunn, Germany  Susan A. Kassin Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Dept. of Physics & Astronomy, Johns Hopkins University, 3400 N. Charles St.,
Baltimore, MD, 21218, USA  David D. Kauffman  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Patrick Kavanagh
Dublin Institute for Advanced Studies, School of Cosmic Physics, 31
Fitzwilliam Place, Dublin 2, D02 XF86, Ireland  Leigh L. Kelley  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Douglas M.
Kelly  Steward Observatory, University of Arizona, 933 N. Cherry Ave, Tucson,
AZ 85721, USA  Sarah Kendrew European Space Agency, Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA  Herbert V. Kennedy
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Deborah A. Kenny  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Ritva A. Keski-Kuha  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Charles D.
Keyes Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Ali Khan  European Space Agency, European Research & Technology
Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Richard
C. Kidwell  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Randy A. Kimble  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  James S. King  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Richard
C. King  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Wayne M. Kinzel  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Jeffrey R. Kirk  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Marc E.
Kirkpatrick  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Pamela Klaassen UK Astronomy Technology Centre, Royal Observatory Edinburgh,
Blackford Hill, Edinburgh EH9 3HJ, UK  Lana Klingemann  Ball Aerospace &
Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA  Paul U.
Klintworth  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Bryan Adam Knapp  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Scott Knight  Ball Aerospace & Technologies Corp.,
1600 Commerce Street, Boulder, CO 80301, USA  Perry J. Knollenberg  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Daniel Mark Knutsen
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Robert Koehler  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Anton M. Koekemoer Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Earl T. Kofler
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Vicki L.
Kontson  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Aiden Rose Kovacs  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Vera Kozhurina-Platais  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Oliver Krause  Max Planck Institute for Astronomy, Königstuhl 17, D-69117
Heidelberg, Germany  Gerard A. Kriss Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  John Krist  Jet Propulsion
Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena,
CA, 91109, USA  Monica R. Kristoffersen  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Claudia Krogel  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Anthony P. Krueger  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Bernard A. Kulp  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Nimisha Kumari European Space Agency, Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
Sandy W. Kwan  Jet Propulsion Laboratory, California Institute of Technology,
4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Mark Kyprianou  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Aurora
Gadiano Labador  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Álvaro Labiano Telespazio UK for the European Space
Agency, ESAC, Camino Bajo del Castillo s/n, 28692 Villanueva de la Cañada,
Spain  David Lafrenière Institut de Recherche sur les Exoplanètes (iREx),
Université de Montréal, Département de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  Pierre-Olivier
Lagage  Université Paris-Saclay, Université de Paris, CEA, CNRS, AIM, F-91191
Gif-sur-Yvette, France  Victoria G. Laidler  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Benoit Laine
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Simon Laird  European Space
Agency, European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200
AG Noordwijk, The Netherlands  Charles-Philippe Lajoie  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Matthew
D. Lallo  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  May Yen Lam  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Stephanie Marie LaMassa Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Scott D. Lambros  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Richard Joseph Lampenfield Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Matthew Ed Lander
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
James Hutton Langston  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Kirsten Larson European Space Agency, Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
Melora Larson  Jet Propulsion Laboratory, California Institute of Technology,
4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Robert Joseph LaVerghetta  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
David R. Law Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Jon F. Lawrence  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  David W. Lee  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Janice Lee  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Gemini
Observatory/NSF’s NOIRLab, 950 N. Cherry Avenue, Tucson, AZ, 85719, USA
Steward Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ
85721, USA  Yat-Ning Paul Lee Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Jarron Leisenring Steward
Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA
Michael Dunlap Leveille  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Nancy A. Levenson Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Joshua S. Levi
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Marie B.
Levine  Jet Propulsion Laboratory, California Institute of Technology, 4800
Oak Grove Dr., Pasadena, CA, 91109, USA  Dan Lewis  Lockheed Martin Advanced
Technology Center, 3251 Hanover St., Palo Alto, CA 94304  Jake Lewis  Ball
Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA
Blue Canyon Technologies, 5330 Airport Road, Boulder, CO, 80301, USA  Nikole
Lewis Department of Astronomy, Cornell University, Ithaca, NY 14853, USA
Mattia Libralato European Space Agency, Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD 21218, USA  Norbert Lidon  Centre
national d’études spatiales, Direction des Lanceurs, 52 rue Jacques Hillairet,
75612 Paris CEDEX, France  Paula Louisa Liebrecht  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Paul Lightsey
Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301,
USA  Retired  Simon Lilly  ETH Zurich, Wolfgang-Pauli-Str 27, CH-8093 Zurich,
Switzerland  Frederick C. Lim  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Pey Lian Lim Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Sai-Kwong Ling
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Lisa J. Link
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Miranda Nicole Link  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Jamie L. Lipinski  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  XiaoLi Liu  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Amy S. Lo  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Lynette Lobmeyer  Ball Aerospace & Technologies Corp., 1600 Commerce Street,
Boulder, CO 80301, USA  Ryan M. Logue  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Chris A. Long  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Douglas
R. Long Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Ilana D. Long  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Knox S. Long Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Marcos López-
Caniego Aurora Technology for the European Space Agency, ESAC, Madrid, Spain
Jennifer M. Lotz Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Jennifer M. Love-Pruitt  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Michael Lubskiy  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Edward B.
Luers  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Retired  Robert A. Luetgens  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Annetta J. Luevano  Northrop Grumman, One Space
Park, Redondo Beach, CA 90278, USA  Sarah Marie G. Flores Lui  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  James M.
Lund III  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Ray
A. Lundquist  NASA Headquarters, 300 E Street SW, Washington, DC 20546, USA
Jonathan Lunine Department of Astronomy, Cornell University, Ithaca, NY 14853,
USA  Nora Lützgendorf European Space Agency, Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA  Richard J. Lynch
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
HelioSpace Inc., 932 Parker St. Suite 2, Berkeley, CA, 94710, USA  Alex J.
MacDonald  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Kenneth MacDonald  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Matthew J. Macias
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Keith I.
Macklis  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Peiman Maghami  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Rishabh Y. Maharaja  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Roberto Maiolino
Cavendish Laboratory, University of Cambridge, 19 J. J. Thomson Ave.,
Cambridge CB3 0HE, UK  Kavli Institute for Cosmology, University of Cambridge,
Madingley Road, Cambridge CB3 0HA, UK  Konstantinos G. Makrygiannis  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  Sunita Giri Malla
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Eliot M. Malumuth  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Elena Manjavacas European Space
Agency, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD 21218, USA  Andrea Marini  European Space Agency, European Research &
Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Amanda Marrione  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Anthony Marston European Space
Agency, European Space Astronomy Centre, Camino bajo del Castillo, s/n,
Urbanización Villafranca del Castillo, 28692 Villanueva de la Cañada, Madrid,
Spain  André R Martel  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Didier Martin  European Space Agency,
European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG
Noordwijk, The Netherlands  Peter G. Martin Canadian Institute for Theoretical
Astrophysics, University of Toronto, McLennan Physical Laboratories, 60 St.
George Street, Toronto, Ontario, Canada M5S 3H8  Kristin L. Martinez  Ball
Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA
Marc Maschmann  Airbus Defence and Space GmbH, Ottobrunn, Germany  Gregory L.
Masci  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Margaret E. Masetti  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Adnet Systems, Inc., 6720B Rockledge
Drive, Suite # 504, Bethesda, MD 20817, USA  Michael Maszkiewicz  Canadian
Space Agency, 6767 Route de l’Aéroport, Saint-Hubert, QC J3Y 8Y9, Canada  Gary
Matthews  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Jacob E. Matuskey  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Glen A. McBrayer  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Donald W. McCarthy  Steward
Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA
Mark J. McCaughrean European Space Agency, European Research & Technology
Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Leslie
A. McClare  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Michael D. McClare  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  John C. McCloskey  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Taylore D. McClurg
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Martin McCoy
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Michael W. McElwain NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Roy D. McGregor  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Douglas B. McGuffey  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Andrew G. McKay  Northrop
Grumman, One Space Park, Redondo Beach, CA 90278, USA  William K. McKenzie
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Brian McLean Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Matthew McMaster  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Warren McNeil
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Retired  Wim De Meester  Instituut voor Sterrenkunde, KU Leuven,
Celestijnenlaan 200D, Bus-2410, 3000 Leuven, Belgium  Kimberly L. Mehalick
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Margaret Meixner Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Marcio Meléndez Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael P. Menzel  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Michael T. Menzel  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Matthew Merz  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  David D. Mesterharm  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Michael R. Meyer Astronomy Department, University of Michigan, Ann Arbor, MI
48109, USA  Michele L. Meyett  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Luis E. Meza  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Calvin Midwinter  Honeywell
Aerospace #100, 303 Terry Fox Drive, Ottawa, ON K2K 3J1, Canada  Stefanie N.
Milam NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Jay Todd Miller  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  William C. Miller  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Cherie L. Miskey
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Karl Misselt  Steward Observatory, University of Arizona, 933 N. Cherry Ave,
Tucson, AZ 85721, USA  Eileen P. Mitchell  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Martin Mohan  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Emily E. Montoya  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Michael J.
Moran  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Takahiro Morishita Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Amaya Moro-Martín Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Debra L. Morrison
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Jane Morrison  Steward Observatory, University of Arizona, 933 N.
Cherry Ave, Tucson, AZ 85721, USA  Ernie C. Morse  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael Moschos
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  S. H. Moseley
Quantum Circuits, Inc., New Haven, Connecticut, USA  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Gary E. Mosier  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Peter Mosner  Airbus Defence and Space GmbH, Ottobrunn, Germany  Matt Mountain
Associated Universities for Research in Astronomy, Inc., 1331 Pennsylvania
Avenue NW, Suite 1475, Washington, DC 20004, USA  Jason S. Muckenthaler
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Donald G.
Mueller  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Migo Mueller  Kapteyn Astronomical Institute, University of
Groningen, P.O. Box 800, 9700 AV Groningen, The Netherlands  Daniella Muhiem
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Deceased  Prisca Mühlmann  European Space Agency, European Research &
Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The
Netherlands  Susan Elizabeth Mullally Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Stephanie M. Mullen  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Alan J
Munger  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Jess
Murphy  Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO
80301, USA  Katherine T. Murray  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  James C. Muzerolle Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Matthew
Mycroft  Jet Propulsion Laboratory, California Institute of Technology, 4800
Oak Grove Dr., Pasadena, CA, 91109, USA  Andrew Myers  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Carey R. Myers
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Fred Richard R. Myers  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Richard Myers  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Kaila Myrick  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Adrian F. Nagle, IV Ball
Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA
Omnarayani Nayak Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Bret Naylor  Jet Propulsion Laboratory, California
Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Susan
G. Neff  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Edmund P. Nelan  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  John Nella  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Duy Tuong Nguyen Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael
N. Nguyen  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Bryony Nickson Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  John Joseph Nidhiry  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Malcolm B.
Niedner  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Retired  Maria Nieto-Santisteban  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Nikolay K.
Nikolov Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Mary Ann Nishisaka  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Alberto Noriega-Crespo Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Antonella Nota
European Space Agency, Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD 21218, USA  Retired  Robyn C. O’Mara  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Michael Oboryshko
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Marcus B. O’Brien  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  William R. Ochs  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Joel D. Offenberg Vantage
Systems Inc, Greenbelt MD, 20706  Howard Community College, Columbia MD, 21044
Patrick Michael Ogle Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Raymond G. Ohl  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Joseph Hamden Olmsted  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Shannon Barbara Osborne  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Brian Patrick O’Shaughnessy  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Göran
Östlin Department of Astronomy, Oskar Klein Centre; Stockholm University;
SE-106 91 Stockholm, Sweden  Brian O’Sullivan  European Space Agency, Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
O. Justin Otor Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Richard Ottens  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Nathalie N.-Q. Ouellette Institut
de Recherche sur les Exoplanètes (iREx), Université de Montréal, Département
de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  Daria J. Outlaw
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Beverly A. Owens  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Camilla Pacifici Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  James Christophe Page  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
James G. Paranilam  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Sang Park  The Center for Astrophysics, 60 Garden
Street, Cambridge, MA 02138, USA  Keith A. Parrish  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Laura Paschal  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Polychronis Patapis ETH Zurich, Wolfgang-Pauli-Str 27, CH-8093 Zurich,
Switzerland  Jignasha Patel  NASA Goddard Space Flight Center, 8800 Greenbelt
Rd, Greenbelt, MD 20771, USA  Keith Patrick  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Robert A. Pattishall Jr  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Douglas William Paul  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Shirley J. Paul  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Tyler Andrew Pauly Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Cheryl M.
Pavlovsky  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Maria Peña-Guerrero Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Andrew H. Pedder
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Matthew Weldon Peek  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Patricia A. Pelham  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Konstantin Penanen  Jet Propulsion Laboratory, California Institute of
Technology, 4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Beth A. Perriello
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Marshall D. Perrin Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Richard F. Perrine  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Chuck
Perrygo  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Retired  Muriel Peslier  European Space Agency, Centre Spatial
Guyanais, BP816 – Route Nationale 1, 97388 Kourou CEDEX, French Guiana
Michael Petach  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Karla A. Peterson  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Tom Pfarr  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  James M. Pierson  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Martin Pietraszkiewicz  Northrop Grumman, One Space Park, Redondo Beach, CA
90278, USA  Guy Pilchen  European Space Agency, HQ Daumesnil, 52 rue Jacques
Hillairet, 75012 Paris, France  Judy L. Pipher Department of Physics and
Astronomy, University of Rochester, Rochester NY 14627, USA  Norbert Pirzkal
European Space Agency, Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD 21218, USA  Joseph T. Pitman  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Danielle M. Player  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Rachel Plesha Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Anja Plitzke  European Space Agency, European
Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk,
The Netherlands  John A. Pohner  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Karyn Konstantin Poletis  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Joseph A.
Pollizzi  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Ethan Polster  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  James T. Pontius  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Klaus Pontoppidan
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Susana C. Porges  Northrop Grumman, One Space Park, Redondo Beach,
CA 90278, USA  Gregg D. Potter  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Stephen Prescott  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Charles R. Proffitt Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Laurent Pueyo Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Irma Aracely Quispe Neira  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Armando Radich
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Retired  Reiko T. Rager  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Julien Rameau Institut de Recherche sur les
Exoplanètes (iREx), Université de Montréal, Département de Physique,
C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.  Univ. Grenoble
Alpes, CNRS, IPAG, F-38000 Grenoble, France.  Deborah D. Ramey  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Deceased
Rafael Ramos Alarcon  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Riccardo Rampini  European Space Agency,
European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG
Noordwijk, The Netherlands  Robert Rapp  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Robert A. Rashford  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Bernard J.
Rauscher NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Swara Ravindranath Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Timothy Rawle European Space Agency,
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218,
USA  Tynika N. Rawlings  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Tom Ray Dublin Institute for Advanced Studies,
School of Cosmic Physics, 31 Fitzwilliam Place, Dublin 2, D02 XF86, Ireland
Michael W. Regan  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Brian Rehm  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  Kenneth D. Rehm  Katherine
Johnson IV&V Facility, Goddard Space Flight Center, Code 180, Greenbelt, MD
20771  Neill Reid  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Carl A. Reis  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Florian Renk  European Space
Agency, European Space Operations Centre, Robert-Bosch-Strasse 5, 64293
Darmstadt, Germany  Tom B. Reoch  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Michael Ressler Jet Propulsion Laboratory, California
Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Armin
W. Rest Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Paul J. Reynolds  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Joel G. Richon Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Karen V. Richon  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Michael
Ridgaway Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Adric Richard Riedel  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  George H. Rieke Steward
Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA
Marcia J. Rieke Steward Observatory, University of Arizona, 933 N. Cherry Ave,
Tucson, AZ 85721, USA  Richard E. Rifelli  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Jane R. Rigby NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Catherine S. Riggs  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Nancy J. Ringel  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Christine E. Ritchie  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Hans-Walter Rix
Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany
Massimo Robberto Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Dept. of Physics & Astronomy, Johns Hopkins
University, 3400 N. Charles St., Baltimore, MD, 21218, USA  Michael S.
Robinson  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Orion Robinson  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Frank W. Rock  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  David R.
Rodriguez Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Bruno Rodríguez del Pino Centro de Astrobiología (CAB, CSIC-
INTA), Carretera de Ajalvir, E-28850 Torrejón de Ardoz, Madrid, Spain  Thomas
Roellig  NASA Ames Research Center, Space Science and Astrobiology Division,
MS 245-6, Moffett Field, CA, 94035, USA  Scott O. Rohrbach  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Anthony J. Roman
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Frederick J. Romelfanger  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Felipe P. Romo Jr  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Jose J.
Rosales NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Perry Rose  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Anthony F. Roteliuk  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Marc N. Roth  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Braden Quinn Rothwell  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Sylvain Rouzaud  Centre national d’études spatiales, Direction des Lanceurs,
52 rue Jacques Hillairet, 75612 Paris CEDEX, France  Jason Rowe Department of
Physics & Astronomy, Bishop’s University, Sherbrooke, QC J1M 1Z7, Canada.
Neil Rowlands Honeywell Aerospace #100, 303 Terry Fox Drive, Ottawa, ON K2K
3J1, Canada  Arpita Roy Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Pierre Royer Instituut voor Sterrenkunde, KU
Leuven, Celestijnenlaan 200D, Bus-2410, 3000 Leuven, Belgium  Chunlei Rui
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Peter Rumler
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Retired  William Rumpl  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Melissa L. Russ  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Michael B. Ryan  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Richard M. Ryan  NASA Headquarters, 300 E Street
SW, Washington, DC 20546, USA  Karl Saad  Canadian Space Agency, 6767 Route de
l’Aéroport, Saint-Hubert, QC J3Y 8Y9, Canada  Modhumita Sabata  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Rick Sabatino  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt,
MD 20771, USA  Elena Sabbi Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Phillip A. Sabelhaus  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Deceased  Stephen
Sabia  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Kailash C. Sahu Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Babak N. Saif  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Jean-Christophe
Salvignol  European Space Agency, European Research & Technology Centre,
Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Piyal Samara-
Ratna School of Physics & Astronomy, Space Research Centre, University of
Leicester, Space Park Leicester, 92 Corporation Road, Leicester LE4 5SP, UK
Bridget S. Samuelson  Northrop Grumman, One Space Park, Redondo Beach, CA
90278, USA  Felicia A. Sanders  Jet Propulsion Laboratory, California
Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Bradley
Sappington  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  B. A. Sargent Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Dept. of Physics &
Astronomy, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD,
21218, USA  Arne Sauer  Airbus Defence and Space GmbH, Ottobrunn, Germany
Bruce J. Savadkin  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Retired  Marcin Sawicki Institute for Computational
Astrophysics and Department of Astronomy & Physics, Saint Mary’s University,
923 Robie Street, Halifax, NS B3H 3C3, Canada  Tina M. Schappell  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Caroline
Scheffer  European Space Agency, European Research & Technology Centre,
Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Silvia
Scheithauer Max Planck Institute for Astronomy, Königstuhl 17, D-69117
Heidelberg, Germany  Ron Scherer  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Conrad Schiff  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Everett Schlawin Steward Observatory,
University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA  Olivier
Schmeitzky  European Space Agency, European Research & Technology Centre,
Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands  Tyler S.
Schmitz  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Donald J. Schmude  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Analyn Schneider  Jet Propulsion Laboratory, California
Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Jürgen
Schreiber  Max Planck Institute for Astronomy, Königstuhl 17, D-69117
Heidelberg, Germany  Hilde Schroeven-Deceuninck  European Space Agency,
European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG
Noordwijk, The Netherlands  John J. Schultz  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Ryan Schwab
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Curtis H. Schwartz  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Dario Scoccimarro  European Space
Agency, HQ Daumesnil, 52 rue Jacques Hillairet, 75012 Paris, France  John F.
Scott  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Michelle B. Scott  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Bonita L. Seaton  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Bruce S. Seely
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Bernard Seery  Universities Space Research Association, 425 3rd
Street SW, Suite 950, Washington DC 20024, USA  Mark Seidleck  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Retired
Kenneth Sembach  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Clare Elizabeth Shanahan  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Bryan Shaughnessy
RAL Space, STFC, Rutherford Appleton Laboratory, Harwell, Oxford, Didcot OX11
0QX, UK  Richard A. Shaw Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Christopher Michael Shay  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Even
Sheehan  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Kartik Sheth NASA Headquarters, 300 E Street SW, Washington, DC
20546, USA  Hsin-Yi Shih Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Irene Shivaei Steward Observatory,
University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA  Noah Siegel
Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301,
USA  Matthew G. Sienkiewicz Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Debra D. Simmons  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Bernard P. Simon  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Marco
Sirianni  European Space Agency, Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD 21218, USA  Anand Sivaramakrishnan Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Astrophysics Department, American Museum of Natural History, 79th Street at
Central Park West, New York, NY 10024  Dept. of Physics & Astronomy, Johns
Hopkins University, 3400 N. Charles St., Baltimore, MD, 21218, USA  Jeffrey E.
Slade  NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  G. C. Sloan Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Christine E. Slocum  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Steven E.
Slowinski  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Corbett T. Smith  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Eric P. Smith NASA Headquarters,
300 E Street SW, Washington, DC 20546, USA  Erin C. Smith  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Koby Smith  Ball
Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA
Robert Smith  Department of History and Classics, University of Alberta,
Edmonton, Alberta, Canada  Stephanie J. Smith  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  John L. Smolik
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  David R.
Soderblom Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Sangmo Tony Sohn Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Jeff Sokol  Ball Aerospace &
Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA  George
Sonneborn NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD
20771, USA  Retired  Christopher D. Sontag  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Peter R. Sooy  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Remi Soummer
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Dana M. Southwood  Northrop Grumman, One Space Park, Redondo
Beach, CA 90278, USA  Kay Spain  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Joseph Sparmo  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  David T. Speer
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Richard Spencer  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Joseph D. Sprofera  Northrop Grumman, One Space
Park, Redondo Beach, CA 90278, USA  Scott S. Stallcup  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Marcia K. Stanley
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
John A. Stansberry Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Christopher C. Stark  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Carl W. Starr  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Diane Y. Stassi  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Jane A. Steck  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Christine D. Steeley  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Matthew A. Stephens  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Ralph J. Stephenson  Northrop Grumman, One Space
Park, Redondo Beach, CA 90278, USA  Alphonso C. Stewart  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Massimo Stiavelli
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Hervey Stockman Jr  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Retired  Paolo Strada  European Space
Agency, European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200
AG Noordwijk, The Netherlands  Amber N. Straughn NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Scott Streetman  Ball
Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA
David Kendal Strickland  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Jingping F. Strobele  Northrop Grumman, One
Space Park, Redondo Beach, CA 90278, USA  Martin Stuhlinger  European Space
Agency, European Space Astronomy Centre, Camino bajo del Castillo, s/n,
Urbanización Villafranca del Castillo, 28692 Villanueva de la Cañada, Madrid,
Spain  Jeffrey Edward Stys  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Miguel Such  European Space Agency, European
Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk,
The Netherlands  Kalyani Sukhatme  Jet Propulsion Laboratory, California
Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Joseph
F. Sullivan  Ball Aerospace & Technologies Corp., 1600 Commerce Street,
Boulder, CO 80301, USA  Retired  Pamela C. Sullivan  NASA Goddard Space Flight
Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Sandra M. Sumner  NASA
Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Fengwu Sun Steward Observatory, University of Arizona, 933 N. Cherry Ave,
Tucson, AZ 85721, USA  Benjamin Dale Sunnquist Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Daryl Allen Swade
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Michael S. Swam  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Diane F. Swenton  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Robby A. Swoish
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Oi In Tam
Litten  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Laszlo Tamas  UK Astronomy Technology Centre, Royal
Observatory Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK  Andrew Tao
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  David K.
Taylor  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Joanna M. Taylor Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Maurice te Plate  European Space
Agency, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD 21218, USA  Mason Van Tea Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Kelly K. Teague  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Randal C.
Telfer  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Tea Temim Princeton University, 4 Ivy Ln, Princeton, NJ 08544,
USA  Scott C. Texter  Northrop Grumman, One Space Park, Redondo Beach, CA
90278, USA  Deepashri G. Thatte  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Christopher Lee Thompson  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Linda M. Thompson  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Shaun R. Thomson  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Harley Thronson  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Retired  C.
M. Tierney  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Tuomo Tikkanen  School of Physics & Astronomy, Space Research Centre,
University of Leicester, Space Park Leicester, 92 Corporation Road, Leicester
LE4 5SP, UK  Lee Tinnin  Steward Observatory, University of Arizona, 933 N.
Cherry Ave, Tucson, AZ 85721, USA  William Thomas Tippet  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Connor
William Todd  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Hien D. Tran Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  John Trauger  Jet Propulsion
Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena,
CA, 91109, USA  Edwin Gregorio Trejo  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Justin Hoang Vinh Truong  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Christine L. Tsukamoto  Northrop Grumman, One Space Park, Redondo Beach, CA
90278, USA  Yasir Tufail  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Jason Tumlinson Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Samuel Tustain
RAL Space, STFC, Rutherford Appleton Laboratory, Harwell, Oxford, Didcot OX11
0QX, UK  Harrison Tyra  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Leonardo Ubeda  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Kelli Underwood
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Michael A. Uzzo  Space Telescope Science Institute, 3700 San
Martin Drive, Baltimore, MD, 21218, USA  Steven Vaclavik  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Frida
Valenduc  European Space Agency, Centre Spatial Guyanais, BP816 – Route
Nationale 1, 97388 Kourou CEDEX, French Guiana  Jeff A. Valenti Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Julie Van Campen  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Inge van de Wetering  European Space Agency,
European Research & Technology Centre, Keplerlaan 1, Postbus 299, 2200 AG
Noordwijk, The Netherlands  Roeland P. Van Der Marel Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Remy van Haarlem
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Bart Vandenbussche Instituut
voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, Bus-2410, 3000 Leuven,
Belgium  Dona D. Vanterpool  NASA Goddard Space Flight Center, 8800 Greenbelt
Rd, Greenbelt, MD 20771, USA  Michael R. Vernoy  Northrop Grumman, One Space
Park, Redondo Beach, CA 90278, USA  Maria Begoña Vila Costas NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  KBR, 7701
Greenbelt Road, Greenbelt, MD 20770  Kevin Volk Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Piet Voorzaat
European Space Agency, European Research & Technology Centre, Keplerlaan 1,
Postbus 299, 2200 AG Noordwijk, The Netherlands  Mark F. Voyton  NASA Goddard
Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Ekaterina
Vydra  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore,
MD, 21218, USA  Darryl J. Waddy  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Christoffel Waelkens Instituut voor
Sterrenkunde, KU Leuven, Celestijnenlaan 200D, Bus-2410, 3000 Leuven, Belgium
Glenn Michael Wahlgren Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Frederick E. Walker Jr  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Michel Wander  Canadian Space
Agency, 6767 Route de l’Aéroport, Saint-Hubert, QC J3Y 8Y9, Canada  Christine
K. Warfield  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Gerald Warner  Honeywell Aerospace #100, 303 Terry
Fox Drive, Ottawa, ON K2K 3J1, Canada  Francis C. Wasiak  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Matthew F. Wasiak
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
James Wehner  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA
Kevin R. Weiler  Northrop Grumman, One Space Park, Redondo Beach, CA 90278,
USA  Mark Weilert  Jet Propulsion Laboratory, California Institute of
Technology, 4800 Oak Grove Dr., Pasadena, CA, 91109, USA  Stanley B. Weiss
Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Martyn Wells
UK Astronomy Technology Centre, Royal Observatory Edinburgh, Blackford Hill,
Edinburgh EH9 3HJ, UK  Alan D. Welty  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Lauren Wheate  NASA Goddard Space
Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Thomas P. Wheeler
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Christy L. White  Northrop Grumman, One Space Park, Redondo Beach,
CA 90278, USA  Paul Whitehouse  NASA Goddard Space Flight Center, 8800
Greenbelt Rd, Greenbelt, MD 20771, USA  Jennifer Margaret Whiteleather  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
William Russell Whitman  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Christina C. Williams National Optical-
Infrared Research Laboratory, 950 N Cherry Ave, Tucson, AZ 85719  Christopher
N. A. Willmer Steward Observatory, University of Arizona, 933 N. Cherry Ave,
Tucson, AZ 85721, USA  Chris J. Willott NRC Herzberg, 5071 West Saanich Rd,
Victoria, BC V9E 2E7, Canada  Scott P. Willoughby  Northrop Grumman, One Space
Park, Redondo Beach, CA 90278, USA  Andrew Wilson  Honeywell Aerospace #100,
303 Terry Fox Drive, Ottawa, ON K2K 3J1, Canada  Debra Wilson  Steward
Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA
Donna V. Wilson  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Rogier Windhorst School of Earth and Space
Exploration, Arizona State University, Tempe, AZ 85287-1404, USA  Emily
Christine Wislowski  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  David J. Wolfe  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Michael A. Wolfe  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Schuyler Wolff Steward Observatory, University of Arizona, 933 N. Cherry Ave,
Tucson, AZ 85721, USA  Amancio Wondel  European Space Agency, Centre Spatial
Guyanais, BP816 – Route Nationale 1, 97388 Kourou CEDEX, French Guiana  Cindy
Woo  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Robert T.
Woods  Northrop Grumman, One Space Park, Redondo Beach, CA 90278, USA  Elaine
Worden  Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO
80301, USA  Retired  William Workman  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Gillian S. Wright UK Astronomy
Technology Centre, Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9
3HJ, UK  Carl Wu  NASA Goddard Space Flight Center, 8800 Greenbelt Rd,
Greenbelt, MD 20771, USA  Chi-Rai Wu  Space Telescope Science Institute, 3700
San Martin Drive, Baltimore, MD, 21218, USA  Dakin D. Wun  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Kristen B. Wymer  Space
Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Thomas Yadetie  Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD, 21218, USA  Isabelle C. Yan  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Keith C. Yang  Northrop Grumman,
One Space Park, Redondo Beach, CA 90278, USA  Kayla L. Yates  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Christopher R. Yeager  Space Telescope Science Institute, 3700 San Martin
Drive, Baltimore, MD, 21218, USA  Ethan John Yerger  Space Telescope Science
Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Erick T. Young
Universities Space Research Association, 425 3rd Street SW, Suite 950,
Washington DC 20024, USA  Gary Young  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Gene Yu  Northrop Grumman, One Space Park,
Redondo Beach, CA 90278, USA  Susan Yu  Space Telescope Science Institute,
3700 San Martin Drive, Baltimore, MD, 21218, USA  Dean S. Zak  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Peter
Zeidler AURA for the European Space Agency (ESA), ESA Office, Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA  Robert
Zepp  Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD,
21218, USA  Julia Zhou  Honeywell Aerospace #100, 303 Terry Fox Drive, Ottawa,
ON K2K 3J1, Canada  Christian A. Zincke  NASA Goddard Space Flight Center,
8800 Greenbelt Rd, Greenbelt, MD 20771, USA  Stephanie Zonak  Space Telescope
Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA  Elisabeth
Zondag  European Space Agency, European Research & Technology Centre,
Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands

###### Abstract

Twenty-six years ago a small committee report, building on earlier studies,
expounded a compelling and poetic vision for the future of astronomy, calling
for an infrared-optimized space telescope with an aperture of at least $4m$.
With the support of their governments in the US, Europe, and Canada, 20,000
people realized that vision as the $6.5m$ James Webb Space Telescope. A
generation of astronomers will celebrate their accomplishments for the life of
the mission, potentially as long as 20 years, and beyond. This report and the
scientific discoveries that follow are extended thank-you notes to the 20,000
team members. The telescope is working perfectly, with much better image
quality than expected. In this and accompanying papers, we give a brief
history, describe the observatory, outline its objectives and current
observing program, and discuss the inventions and people who made it possible.
We cite detailed reports on the design and the measured performance on orbit.

##  1 Introduction

We summarize the history, concept, scientific program, and technical
performance of the James Webb Space Telescope (JWST, Webb; Gardner et al.,
2006). This paper points to and extracts key results from detailed papers in
this issue on the four instruments: Near-Infrared Camera (NIRCam; Rieke et
al., 2022, this issue), Near-Infrared Spectrograph (NIRSpec; Böker et al.,
2023, this issue), Near-Infrared Imager and Slitless Spectrograph (NIRISS
Doyon et al., 2023, this issue), and Mid-Infrared Instrument (MIRI; Wright et
al., 2023, this issue); the telescope (McElwain et al., 2023, this issue); the
observatory (Menzel et al., 2023, this issue); the scientific performance
(Rigby et al., 2022a, this issue); and the brightness of the sky and stray
light (Rigby et al., 2022b, this issue).

Figure 1: JWST in the Northrop Grumman cleanroom following a sunshield
deployment test.

Launched 2021 December 25, the JWST (See figure 1) is a $6.5m$ diameter cold
space telescope with cameras and spectrometers covering $0.6\mu m$ to $28\mu
m$ wavelength. Orbiting the Sun-Earth L2 point, it extends the discoveries and
technologies of the $2.4m$ warm Hubble Space Telescope (HST) and the $85cm$
cold Spitzer Space Telescope. JWST enables observations of the distant early
universe, potentially reaching beyond redshift $z\sim 15$, within $\lesssim
300Myr$ of the Big Bang. JWST’s infrared wavelength range penetrates dust
clouds, to observe obscured active galactic nuclei (AGN) and star and planet
formation. It shows objects too cool to radiate visible light. It includes the
fundamental vibration-rotation bands of important molecules.

JWST was conceived from the beginning as an international project, led by NASA
in partnership with the European and Canadian Space Agencies (ESA and CSA).
Observing time allocations are open to all astronomers worldwide. JWST was
launched from French Guiana on an ESA-provided Ariane 5 rocket. JWST cost NASA
$8.8B to get to launch, and will make observations for a projected fuel-
limited lifetime potentially as long as 20 yrs. JWST’s observations cannot be
obtained in any other way: Hubble has 1/6.25 of the collecting area, and,
being a room-temperature telescope emits its own infrared beyond $1.7\mu m$.
Spitzer was cold but had less than $2\%$ of JWST’s collecting area. For
ground-based telescopes, the Earth’s warm atmosphere results in a background
that is $10^{6}-10^{7}$ times higher and also blocks large regions of IR
wavelengths.

JWST includes a general-purpose instrument package in its Integrated Science
Instrument Module (ISIM). NIRCam covers $0.6\mu m$ to $5\mu m$ with filters, a
coronagraph, 0.032 arcsec pixels in its short wavelength channel, and a
dichroic filter enabling simultaneous observation in both short and long
wavelength bands. NIRSpec covers the same wavelength range with prisms and
gratings, with fixed slits, an integral field unit (IFU), and a microshutter
array (MSA) to select up to 100 simultaneous targets. NIRISS covers the same
wavelength range with slitless spectroscopy, and provides a non-redundant mask
for coronagraphy. MIRI covers $5\mu m$ to $28\mu m$ with imaging, IFU
spectroscopy, and coronagraphs. The Fine Guidance Sensor (FGS) senses pointing
errors and feeds the attitude control system to maintain sharp images. ESA
provided the NIRSpec with the detectors and micro-shutter array provided by
Goddard, CSA provided the NIRISS and FGS, and a partnership of JPL and a
European consortium provided MIRI. NIRCam, and the US portions of MIRI and
NIRSpec, were funded by NASA.

JWST’s first year of observations includes nearly half of a year of guaranteed
time observations allocated to the teams building the instruments, 6
interdisciplinary scientists, and the telescope scientist. There is also a set
of 13 competitively-selected Director’s Discretionary Early Release Science
(DD-ERS) programs with data that become public immediately. The remaining
observations were selected from over 1200 proposals through a dual-anonymous
peer review, in which the identities of the proposers were not known to
reviewers. Anyone can propose, regardless of nationality or institution. There
were 286 programs selected in Cycle 1, including 263 pointed programs, 3 pure
parallel programs, and 20 archival or theory programs. The Cycle 2 call
received more than 1600 proposals submitted by more than 5000 scientists from
around the world. NASA provides funding for data analysis to US-based
investigators who are awarded time on JWST, and for archival and theoretical
research related to JWST.

JWST is a technical pioneer, the first deployable segmented space telescope,
with mirror segments that are aligned and focused after launch, with its
remarkable cryogenic optical system providing diffraction-limited images
(Strehl ratio 0.8) as short as $1.1\mu m$. Its detectors are larger and more
sensitive than previous generations. Its 6.0K cryocooler for the mid IR
instrument (MIRI) has no expendables and should last the duration of the
mission. It uses cryogenic ASICs to control and read the near IR detectors.
Its 5-layer sunshield cools the telescope to between 35K and 55K. Based on
JWST’s successes and lessons learned, NASA is positioned to proceed to the 6m
near-IR, optical, and UV flagship telescope recommended by the 2020 Decadal
Survey (National Academies of Sciences & Medicine, 2021), with the ability to
directly detect Earth-like planets around Sun-like stars.

##  2 Timeline History of JWST

In this section we present a brief timeline history of the concept, design,
construction and testing of JWST.

###  2.1 1980s.

In the 1980s, preliminary work by Garth Illingworth, Pierre Bély, Peter
Stockman, and others on an 8m to 10m passively-cooled infrared telescope began
at Space Telescope Science Institute (STScI), following Riccardo Giacconi’s
advice to work on the “next big thing.” Progress was reported at the
STScI/NASA Next Generation Space Telescope (NGST) conference, 1989 September
13 to 15 (Bely et al., 1990). This international conference excited scientists
and engineers with the scientific opportunities and technical challenges
enabled by a very large cold infrared space telescope. A decade before that,
in 1979, a National Academy of Sciences (NAS) report recommended the Shuttle
Infrared Telescope Facility (SIRTF, later Spitzer; Field & Astronomy and
Astrophysics Survey Committee, 1983), even before the IRAS launch (1983
January 25). Goddard built the Cosmic Background Explorer (COBE) and launched
it on 1989 November 18 to measure the Big Bang, the cosmic microwave and IR
background light, beginning the era of precision cosmology (Mather et al.,
1994). The discovery of the primeval anisotropy led to the standard model of
cosmology, in which gravity acting on density fluctuations could produce
galaxies. To build the COBE, Goddard also developed expertise with cryogenic
instrumentation and test programs that would become essential for Webb.

###  2.2 1990s.

The Hubble was launched 1990 April 24 and its optical error was soon
discovered, leading to two breakthroughs: learning to measure the optical
error (spherical aberration) with phase diversity, and demonstrating the value
of the planned servicing and repair of Hubble using the Space Shuttle in 1993.
The development of the phase diversity algorithms was jointly done by STScI,
Goddard and JPL (Burrows et al., 1991; Fienup et al., 1993; Krist & Burrows,
1995). The experience gained by the people working on the servicing missions,
instrument upgrades, and spacecraft hardware repairs and replacements would be
critically important for the development of the JWST, as many of the younger
engineers working on Hubble later became leaders of the Webb team. The Bahcall
report (Decadal Survey: Bahcall & Astronomy and Astrophysics Survey Committee,
1991) endorsed Spitzer (at that time called the Space Infrared Telescope
Facility, SIRTF) and declared that the 1990s would be the “Decade of the
Infrared.” The AstroTech conference (Illingworth, 1991) reviewed possibilities
for large telescopes and cited the Bahcall report. In 1993, the Edison
mission, a deployable 2m+ diameter IR telescope, was proposed to ESA (Thronson
et al., 1996). Larger format IR detector arrays, in part spurred by the NICMOS
development, enabled galaxy surveys (e.g., Gardner et al., 1993) and other
near-IR science with ground-based telescopes.

The Edison concept included passive cooling, and some of the people working on
Edison brought that experience to the JWST team later. The Hubble phase
retrieval algorithm was published and the Hubble optics were corrected in its
first servicing mission. Soon after, NASA commissioned AURA’s HST and Beyond
committee, chaired by Alan Dressler, to write a report on potential successors
to HST (Dressler & HST and Beyond Committee, 1996). STScI sent a proposal
entitled “High-Z” to NASA, suggesting that a telescope in a 1$\times$3 AU long
elliptical orbit would be helpful, to get outside the interference of the
zodiacal dust cloud. In 1995, JPL submitted the MIRORS proposal to NASA for a
passively cooled mid IR telescope (Wade et al., 1996).

####  2.2.1 1995.

On 1995 October 30, Ed Weiler of NASA HQ left a phone message for John Mather
at Goddard, explaining that NASA was starting a study of what was then called
the Next Generation Space Telescope (NGST), and inviting his participation.
Within the context of the previous studies, and based on a draft of the HST
and Beyond report, NGST would be a $4m$ passively-cooled IR telescope making
observations at $1\mu m<\lambda<5\mu m$. GSFC chose Bernie Seery to manage the
study. The Federal Government shut down 1995 November 14 to 19 and again 1995
December 16 to 1996 January 6. On 1996 January 6 to 8, a record blizzard
closed the Washington DC area and nothing moved for a week. As a result Mather
did not attend the dramatic AAS meeting in San Antonio. This pivotal start
foreshadowed Webb’s future, as its development was to be affected by more
storms, government shutdowns, a terrorist attack, an earthquake in Virginia, a
lightning strike, a hurricane in Texas, and the COVID pandemic, all of which
would occur before Webb was launched.

On 1996 January 15, the Hubble Deep Field image was released at the AAS
meeting, completely changing our view of galaxies in the universe (Williams et
al., 1996). On 1996 January 17, Dan Goldin spoke to the AAS, saying, “Why do
you ask for such a modest thing [$4m$]? Why not go after six or seven meters?”
He received a standing ovation, which turned out to be Webb’s first (informal)
peer review. Dressler also spoke to present the report at the meeting
(Dressler & HST and Beyond Committee, 1996). On 1996 January 22 to 25, Mather
attended a conference in Johannesburg, and met ESA counterparts for the first
time to discuss ideas for the NGST. The final Dressler report appeared in 1996
May (Dressler & HST and Beyond Committee, 1996). Wendy Freedman’s Hubble Key
Project reported on the Hubble Constant, discussing their initial values
(around $60kms^{-1}Mpc^{-1}$) and comparing to others (up to
$80kms^{-1}Mpc^{-1}$) (Freedman et al., 2001, and references therein).
Predictions of early galaxies that could be visible to Webb depend strongly on
this number, and would be important when a descope decision was taken in 2001.

####  2.2.2 1996 to 1999.

The year 1996 marked the industrial kickoff. Around May, GSFC presented NGST
ideas to interested aerospace companies in a meeting held at the Space
Telescope Science Institute (STScI). NASA issued a Cooperative Agreement
Notice so the companies could compete for this new work. Two studies were
chosen (TRW and Ball) and they and the Government/STScI teams reported in
September. Jonathan Gardner, newly hired at Goddard, attended the meeting,
learning about NGST for the first time. The reports said they could meet
Goldin’s cost target of $0.5B, though what exactly was included in these
estimates is unclear now. Outside this group, hardly anyone believed that such
a low cost was possible.

In 1997, NASA solicited proposals for the Ad Hoc Science Working Group to
advise NASA on the choice of scientific objectives and instruments; the
committee first met later that year. In 1997, AURA issued a report “Visiting a
Time When Galaxies were Young”, detailing the concepts that had been developed
in 1996 (Stockman, 1997). In 1998, a conference in Liège, Belgium reported
progress developing science drivers and technological challenges (Kaldeich-
Schürmann, 1998), after ESA established an NGST Task Force. The STScI was
officially made the NGST Science Operations Center in a ceremony with Senator
Barbara Mikulski and Administrator Goldin. The cosmic acceleration (dark
energy) was discovered (Riess et al., 1998; Schmidt et al., 1998; Perlmutter
et al., 1999), adding to the growing sense that NGST was key to studies of the
distant universe, as a dark-energy-dominated universe has galaxies forming at
higher redshift than in a matter-dominated flat universe. The conference
“Science with the NGST (Next Generation Space Telescope)” was held at GSFC
(Smith & Koratkar, 1998).

On July 7, NASA selected Lockheed Martin and TRW to conduct Phase A mission
studies, preliminary analysis of the design, and cost. Discussions began with
international partners about their possible roles as ESA, CSA and the Japanese
Space Agency (JAXA) participated in the ASWG. In September, just as hurricane
Floyd approached, the NGST Science and Technology Exposition was held in
Hyannis, MA and the choices of possible near IR spectrometer designs were
presented (Smith & Long, 2000). Mather & Stockman (2000) reported the early
history of NGST and listed the instrument studies then underway. The MEMS
(micro-electromechanical system) concept for a multi-object spectrometer was
favored over a Fourier spectrometer, because the Fourier multiplex advantage
does not apply if most of the sky is empty and detector noise is not high
(Gardner & Satyapal, 2000). Moseley et al. (1999) described the microshutter
array, which has significant advantages in size, contrast and cryogenic
operation over the micromirror arrays developed by Texas Instruments for
digital light projection (MacKenty & Stiavelli, 2000).

The ASWG final report recommended that NGST include a NIRCam, NIRSpec with a
MEMS-based multi-object spectrograph capability and a MIRI doing both imaging
and spectroscopy. They gave three options for a fourth instrument: a tunable
filter, a visible-light camera and an integral-field spectrograph (Stockman &
Mather, 2001). By this time, JAXA had decided not to participate in the
mission, and the ASWG recommended that NASA partner with ESA and CSA.

###  2.3 2000s

Ed Weiler signed the Formulation Authorization Document in 1999, defining NGST
as a NASA priority, but a mid-infrared instrument was a goal rather than a
requirement. The 2000 Decadal Survey ranked NGST #1 in large space missions
(McKee et al., 2001). The ranking was predicated on the inclusion of a mid-
infrared instrument, which established it as a requirement for the mission.
NASA chose an Interim Science Working Group (ISWG) to write the specifications
for the instruments and advise about the telescope. NASA and ESA formed a
joint Mid-Infrared Steering Committee, which developed a concept for a mid-
infrared instrument (MIRI) doing both imaging and spectroscopy. The agencies
negotiated a partnership in which ESA would provide the optical bench and NASA
would provide the detectors and cooling system.

In 2001, while preparing the statement of work for the solicitation of the
main industrial contract, Goddard descoped the telescope from $50m^{2}$ to
$25m^{2}$ in collecting area, or $8m$ to $6.5m$ diameter. The descope was to
address a mismatch between the budget and the scope in the solicitation. In
mid-2002, NASA chose TRW to build the observatory, reserving the ISIM to be
built by Goddard. NASA renamed NGST for James E. Webb, who was the second
administrator of NASA, from 1961 to 1968. Webb was responsible for getting
astronauts to the Moon in 8 years, and for expanding NASA’s science program,
which built space telescopes, sent probes to Venus and Mars, and started
missions to the outer planets (Lambright, 1995).

In 2002, NASA selected a proposal led by Marcia Rieke of the University of
Arizona to build the NIRCam. In the same proposal call, NASA selected several
members of the flight Science Working Group (SWG; see Table 1), including 6
interdisciplinary scientists and the US members of the MIRI science team. NASA
signed MOUs with ESA and CSA detailing the international partnership. ESA
would provide the launch vehicle, the NIRSpec and the optical bench for MIRI.
CSA would provide the FGS, and install a tunable-filter imager (TFI) on the
other side of the FGS optical bench. The development of a cryogenic etalon
meeting the requirements for the TFI would prove to be challenging and
ultimately was not successful. The SWG also includes NASA Project Scientists
and representatives of the partner agencies.

Table 1: The JWST Science Working Group

Name | Institution | Position
---|---|---
Santiago Arribas | CSIC | NIRSpec Science Representative *
Mark Clampin | NASA/HQ | Observatory Project Scientist *
René Doyon | Univ of Montreal | CSA Representative
Pierre Ferruit | ESA | ESA Representative
Kathryn Flanagan | STScI, retired | STScI Representative *
Marijn Franx | Leiden University | NIRSpec Science Representative *
Jonathan Gardner | NASA/GSFC | Deputy Senior Project Scientist
Matthew Greenhouse | NASA/GSFC | ISIM Project Scientist
Heidi Hammel | AURA | Interdisciplinary Scientist
John Hutchings | DAO, retired | CSA Representative *
Peter Jakobsen | ESA, retired | ESA Representative *
Jason Kalirai | JHU/APL | STScI Representative *
Randy Kimble | NASA/GSFC | Integration, Test, & Commissioning Project Scientist
Nikole Lewis | Cornell University | STScI Representative *
Simon Lilly | ETH Zurich | Interdisciplinary Scientist
Jonathan Lunine | Cornell University | Interdisciplinary Scientist
Roberto Maiolino | University of Cambridge | NIRSpec Science Representative
John Mather | NASA/GSFC | Senior Project Scientist
Mark McCaughrean | ESA | Interdisciplinary Scientist
Michael McElwain | NASA/GSFC | Observatory Project Scientist
Matt Mountain | AURA | Telescope Scientist
Malcolm Niedner | NASA, retired | Deputy Senior Project Scientist/Technical
George Rieke | University of Arizona | MIRI Science Lead
Marcia Rieke | University of Arizona | NIRCam Principal Investigator
Jane Rigby | NASA/GSFC | Operations Project Scientist
Hans-Walter Rix | Max Planck Institute | NIRSpec Science Representative *
George Sonneborn | NASA, retired | Operations Project Scientist *
Massimo Stiavelli | STScI | Interdisciplinary Scientist
H. Peter Stockman | STScI, retired | STScI Representative *
Jeff Valenti | STScI | STScI Representative
Chris Willott | CNRC | NIRISS Science Lead
Rogier Windhorst | Arizona State University | Interdisciplinary Scientist
Gillian Wright | UKATC | MIRI European Principal Investigator

Note. — The JWST Science Working Group (SWG) consists of GTOs, NASA Project
Scientists, and representatives from ESA, CSA and STScI. (*) designates a
former member who was replaced by someone else. The NIRSpec Science
Representative position rotated through several members of the NIRSpec team.
The SWG first met on 2002 August 19 and disbanded at the end of JWST
Commissioning, 2022 July 12.

Phil Sabelhaus was selected as the Project Manager as the project entered its
detailed design phase. In late 2003, the part of TRW selected to build JWST
was acquired by Northrop Grumman. Northrop, in consultation with Goddard and
the optics Product Integrity Team, selected beryllium for the mirror material.
The competing glass sandwich technology had failed to meet its figure
stability requirements (Stahl et al., 2004). In addition, the Spitzer Space
Telescope (building on other IR space missions) had demonstrated that
construction of a high-precision beryllium mirror was possible. In 2003, the
fabrication of the flight mirrors began by Northrop through a sub-contract to
Ball Aerospace.

Beginning the mirrors was a key step and reflected the expectation that they
could be a critical path pacing item. The Spitzer Space Telescope was launched
2003 August 25. Spitzer rapidly demonstrated the power of mid-IR space
missions (e.g., Werner et al., 2004), and confirmed the wisdom of including
the MIRI in JWST. On 2004 March 3, construction officially began for the JWST.
In 2005, in order to conserve mass, a helium pulse tube cryocooler to be built
by Northrop Grumman was chosen to replace the planned solid hydrogen cooler
for the MIRI. Gardner et al. (2006) published a special issue of the journal
Space Science Reviews, detailing the JWST science objectives and design. In
2005 Mike Griffin replaced Sean O’Keefe as NASA Administrator, and in 2007,
Griffin approved the contribution of the European Ariane 5 rocket for JWST.