blechman's statement: Gravitons are emitted FROM THE SURFACE of the event horizon (remember: gravitons are massless, and therefore move at the speed of light). THAT's what we see. There is NO information (gravitational or otherwise) that can escape from INSIDE the black hole. This is not a contradiction of the existence of gravitons. dilletante's response: If a planet orbiting a black hole experiences the same gravity as it did before the star collapsed, it seems necessary and coincidental that the event horizon would emit the same quantity of gravitons as the original star before collapse. If the gravitons at this point are virtual particles, they certainly do not correspond well to the number of virtual photons emitted, which by virtue of "blackness" are apparently considerably less than originally emitted by the star. Also, before the star collapsed, where were the gravitons emitted from? The surface of the star, or perhaps the center of mass, or maybe the theoretical event horizon? I suspect there are mathematical calculations to explain these things but as a layman, I am confused. Dusty_Matter: How are the gravitons above the event horizon in knowledge of what's beneath them, if there is no information passed beyond the event horizon to them?