Quote Originally Posted by Ironside
From what I know light doesn't have a mass but does act as it had one in several aspects. If light does have mass, then the Theory of Relativity says that this mass is unlimited and that would create a huge black hole that consumes the hole universe.

And IIRC Hawking radiation never really escapes the black hole. It's a radom creation of 2 particles on the exact edge of the black hole. One escapes and the other is getting drawn into the black hole. It also prevents the particles to destroy eachother as they usually do.

And I've found a source that didn't use 'nothing, not even light, can escape' in Swedish

I remember an old experient in physics class back in high-school that would prove that light has mass.....

it consisted of a glass container that was in a vacuum situation, in this container there was this device that kinda looked like a top, it was set in an axil that allowed it to spin, now...one of the sides of this thing was reflective, with the oposite side was black......when sun light shined on this device the little top thing inside spun around.....I can´t remember the name of the bloody thing in portuguese let alone in english...but if i can find a picture i´ll post it.