Monday, July 9, 2007
Anatomy of a black Hole
A black hole is an object with a gravitational field so powerful that a region of space becomes cut off from the rest of the universe – no matter or radiation, including visible light, that has entered the region can ever escape.
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but but.. then.. how do we know that they're there? :P
ReplyDelete(the topic is up for discussion if you'd really like to know...)