[Oculus]

Is there a kind of black hole which is so massive that not even that radiation can escape, or do all black holes emit some kind of radiation? (In fact, do they emit radiation proportional to their size?)

Also armchair physicist here - my understanding is that since information can never be destroyed, Blackholes must emit something.

http://en.wikipedia.org/wiki/Black_hole_information_paradox

[pdonis]

I think there's pretty general agreement among physicists that we will eventually confirm that black holes emit Hawking radiation. However, that by itself doesn't help us to choose between all the various proposed resolutions of the information paradox.