hw1.docx - Hw1 what is black hole out..This...

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Hw1 what is black hole A black hole is a place in space where gravity pulls so much that even light can not get  out. The gravity is so strong because matter has been squeezed into a tiny space. This  can happen when a star is dying. Because no light can get out, people can't see black holes. They are invisible. Space 
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  • Spring '13
  • ToddThompson
  • Black hole

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