sentence: Stars shine and the light can be seen with a telescope, but they also give off radio waves.
sentences_before: A 'radio telescope' is like a huge satellite dish. An ordinary telescope allows people to see light from distant objects.
sentences_after: Scientists with radio telescopes receive these radio waves and use computers to learn about the stars. Other things like black holes also give off radio waves and radio telescopes are useful for learning about them too.
concept_name: star
headings: Radio telescope
categories: Telescopes