Black holes are places in space that suck everything into them. Gravity is so strong in the black holes that even light cant escape. Their are two theories for what would happen if a person fell into a black hole. The fist one says that if a human fell into a black hole they would be stretched like spaghetti and they would die. While the second one which is believed by Dr. Stephen Hawking stated that time would freeze, and a billion years later the human would come out exactly the same. Black holes are formed when a star or a galaxy becomes so dense that it collapses under the pull of its own gravity. Black holes may exist at the heart of every galaxy.
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