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Black Holes

What are black holes? Why do they exist in the first place anyway?
Forum: Science
kathy.tucson 16:43, 21 March 2011
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  • Lejog 22:11, 26 September 2011

    Black holes are formed when the gravity of a star becomes so great that nothing in its vicinity can escape, not even light.

  • JoanNielsen 14:46, 28 August 2011

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  • Nora Monsef 07:53, 25 August 2011

    Black holes are so powerful actually,they're the strongest act of Nature.You know my childhood dream was to become an astronaut ha ha

  • Minhye 10:04, 26 April 2011

    Black holes are created when matter compacts enough to deform spacetime, generally when stars implode. Around the compact mass, there will be an area from which nothing can escape - even light. It should be noted that no-one has ever observed a black hole, but there is evidence of their existence.