Black holes..are they going to destroy earth?? All you want to know about black holes.
BLACK HOLE The first thing which comes in our mind on hearing this word is what is a 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 telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently than other stars. Credits: NASA/CXC/M.Weiss Now the next big question that arises in our mind is HOW ARE THESE BLACK HOLES FORMED?? A common type of black hole is produced by certain dying stars. A star with a mass greater than about 20 times the mass of our Sun may produce a black hole at the end of its life. In the normal life of a star there is a constant tug of war between gravity pulling in and pre