Question

what is black hole ?

Answer 1

a region of space having gravitational field so intense that no matter or radiation can escape

Answer 2

see black hole was a door from where a man could go for time travel yet scientist has not proved that black hole. If we go near to black hole what will happen to u that does not it can be separate u r body or if u gone to black hole then thats all u will not return. black hole was like a magnet if any space ship or rocket go near the blackhole it will pull our rocket to black hole . it was so difficult to tell about this .