Summarize the key information provided in this excerpt about the science of black holes:

Black holes are among the most fascinating and enigmatic objects in the universe. They are regions in space where matter has collapsed in on itself, creating intense gravitational fields from which nothing can escape, not even light. The idea of an object in space so massive and dense that light could not escape was first proposed by John Michell in 1783. Later, in 1916, Albert Einstein's theory of general relativity predicted the existence of these cosmic oddities.

Black holes form when a massive star runs out of fuel and undergoes a supernova explosion, causing its core to collapse under its own gravity. If the remaining core has a mass greater than about three times that of our sun, the force of gravity overwhelms all other forces and the core continues to contract indefinitely. Eventually, the core reaches a point of infinite density, creating a singularity – the defining feature of a black hole.

While a black hole itself is invisible, its presence can be detected by observing its effect on surrounding matter and radiation. Material being pulled into a black hole forms an accretion disk, where friction causes the matter to heat up and emit intense radiation. This radiation, along with the black hole's immense gravitational force, can create some of the most powerful phenomena in the universe, like relativistic jets that may be visible for billions of light-years across space. The first image of a black hole's immediate surroundings, captured in 2019 by the Event Horizon Telescope, provided visual confirmation that these enigmatic objects exist as predicted.
Summarize the key information provided in this excerpt about the science of black holes:

Black holes are among the most fascinating and enigmatic objects in the universe. They are regions in space where matter has collapsed in on itself, creating intense gravitational fields from which nothing can escape, not even light. The idea of an object in space so massive and dense that light could not escape was first proposed by John Michell in 1783. Later, in 1916, Albert Einstein's theory of general relativity predicted the existence of these cosmic oddities.

Black holes form when a massive star runs out of fuel and undergoes a supernova explosion, causing its core to collapse under its own gravity. If the remaining core has a mass greater than about three times that of our sun, the force of gravity overwhelms all other forces and the core continues to contract indefinitely. Eventually, the core reaches a point of infinite density, creating a singularity – the defining feature of a black hole.

While a black hole itself is invisible, its presence can be detected by observing its effect on surrounding matter and radiation. Material being pulled into a black hole forms an accretion disk, where friction causes the matter to heat up and emit intense radiation. This radiation, along with the black hole's immense gravitational force, can create some of the most powerful phenomena in the universe, like relativistic jets that may be visible for billions of light-years across space. The first image of a black hole's immediate surroundings, captured in 2019 by the Event Horizon Telescope, provided visual confirmation that these enigmatic objects exist as predicted.
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Black holes are extremely dense and massive regions in space with gravitational fields so intense that nothing, including light, can escape them. They form when the core of a massive star collapses in on itself after a supernova explosion. While invisible, the presence of black holes can be detected by observing their effects on surrounding matter and radiation, such as the formation of accretion disks and powerful emissions of energy. The groundbreaking 2019 image from the Event Horizon Telescope provided the first visual evidence of a black hole's surroundings, confirming their existence as predicted by Einstein's theory of general relativity.
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Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Can you summarize the plot to kill George Washington during the American Revolution and the role of Thomas Hickey in that plot in this text? 


In 1776, while the American colonies were at war with Great Britain but before the signing of the Declaration of Independence, a plot was hatched by loyalists to kill George Washington and other leaders within the Continental Army. It was formed by the British-appointed governor of New York William Tyron and the loyalist mayor of New York City David Matthews. (This was not Tyron’s only attempt at sabotaging the colonies: he was also found guilty of running a counterfeiting operation to undermine their already struggling economy.) The plan was to turn members of the Life Guard, Washington’s personal guard, against their commander in chief and assassinate him, leaving the colonies without a leader and giving the British the supreme advantage in the war.
It is sometimes assumed that patriots were all loyal to the cause of independence from Britain, but this was not always the case. These were not hardened soldiers but were actually mainly civilians. Farmers, laborers, and others joined in the war effort. They were often not very well off, and the British preyed on that. Some soldiers switched sides when they believed that their side was losing. One of those people was Thomas Hickey.
Hickey was a member of the Life Guard that was handpicked by Washington. Hickey was born in Ireland and joined the British Army during the Seven Years’ War. He deserted and joined the Connecticut militia when the American Revolution broke out. He went on to join the Life Guard. It is unclear when Hickey turned to the loyalist cause or if he was always a loyalist, but it is clear that he became part of the conspiracy to kill Washington. Part of his job was to recruit other members of the Life Guard to the loyalist cause.
Response: During the American Revolution, a group of loyalists planned to assassinate George Washington and other Continental Army leaders in 1776. One of the members, Thomas Hickey, who was part of Washington's Life Guard, was responsible for recruiting new members for the loyalist cause. Despite having served in the British Army during the Seven Years' War, Hickey later deserted to fight for the Colonies.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.
