11ac1064_ions___Astronomy___Black_Holes__Question
[Date Answered] April 14, 1998 [Questioner (age, location)] Howard (Australia) [Answer] The extraordinary effects of gravity for a small black hole are only felt up to a few hundred miles away. Farther than this, the gravity felt is that corresponding to the original mass of the star. However, as the light which enters that radius is u nable to escape and becomes part of the black hole, the black hole grows and its gravity is felt at a greater distance. [Question] 
If black holes have the same attractive force as the star from which it formed, why then is it black. I.e. why can't light escape as it could from the preceding star?
Quickie Questions - Astronomy - Black Holes