as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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explain what a black hole is in less than 50 words
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a black hole is an object in space made up of a supermassive amount of matter packed into a small area. its gravitational pull is so strong that not even light can escape, making it completely black and invisible.
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