11ac1064_ions___Astronomy___Black_Holes__Question
[Date Answered] July 21, 2007 [Questioner (age, location)] piyu (india) [Answer] Black Holes are theoretical objects. A black hole is an object which has such high gravitational pull that not even light can escape. Hence it is black. Which makes it pretty hard to observe directly. Black Holes may form as the result of the collapse of a very massive star at its death. More information in our web page Black Holes. [Question] 
what is black hole?
Quickie Questions - Astronomy - Black Holes