Sorry Alex, I can't answer your question, but I do have one of my own

Black holes are so dense mass-wise that nothing can escape them - not even light.
"Their existence can only be inferred from their gravitational effects on their surroundings and " the radiation emitted by material falling in to them.""
(Cambridge Dictionary of Astronomy)
So, if light cannot escape a black hole, how is it that radiation can be released?
Or does this release occur outside of or before the event horizon.
Everyone else probably knows the answer to this one but I have to admit that I don't
