BLACKHOLE
Black holes are regions ofospace that have such strong gravity , nothing can escape them, 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. Can we see the Black holes :- People can't see black holes, because no light can get out, strong gravity pulls all of the light into the middle of the black hole. They are invisible. Space telescope with special tools can help find black holes. How Big are Black holes? Black holes can be big or small. Scientists think the smallest black holes are as small as just one atom. Another kind of Black hole is called ' stellar .' Its mass can be up 20 times more than the mass of the Sun. There may be many, many stellar mass black holes in Earth's galaxy. Earth's galaxy is called the Milky Way . The largest Black holes are called ' SUPERMASSIVE ." ...