Reply #21: From what I know...

[Endangered Specie]

its a mass that is so dense that it is collapsing under its own weight (gravity), and keeps compressing and compressing and the force of gravity (which is proportional to mass/distance^2) increases as a result, it gets so bad that interatomic forces are defeated, and in theory (mathmatically) it becomes infinitly concentrated at one point in space, thus the gravity force is infinite.

Of course, that probably isnt so in reality, all you need for a black hole is for the gravity pull to get so bad that the esape velocity to escape the pull (for some distance away >0 ) is greater than lightspeed, therefore nothing can escape.


neutron stars are "pseudo black holes" they are not dense enough for that, however something would have to be going at a good sublight clip to escape it and they bend light pretty good.