Nothing Escapes From A Black Hole, And Now Astronomers Have Proof
If you collect more and more matter in a small enough volume of space, it gets harder and harder to escape from its gravitational pull. Gather enough mass there, and you'll find that the speed you'd need to reach in order to escape is greater than the speed of light! From within that region, escape …
Matt Hines flipped this story into Space & Theories•2514d
Black holes (Forbes)