What are Black Holes?

a region where the escape is impossible.it wont be possible to see as even light cannot be escaped from black hole.lot of research are going on to prove its evidence

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We used to refer to my mom's purse as the black hole. I know that's not what you were talking about but thought it was funny.

Black Holes are objects predicted from general relativity with a gravitational field so strong that nothing can escape it — not even light.A black hole is defined to be a region of space-time where escape to the outside universe is impossible. The boundary of this region is a surface called the event horizon. This surface is not a physically tangible one, but merely a figurative concept of an imaginary boundary. Nothing can move from inside the event horizon to the outside, even briefly. Theoretically, a black hole can be any size. Astrophysicists expect to find black holes with masses ranging between roughly the mass of the Sun to many millions of times the mass of the Sun (supermassive black holes).

no idea.

seems it science word

well black holes r he spots formed when a star reaches it's life span......the explode and the debris r attracted by a huge magnetic effect and the magnetism is tremendous it can attract the entire planets surrounding it and it forms a huge slid black mass called the black hole.....any thing which nears it will be pulled in.....