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Oct28-03, 08:07 PM
P: 837
Originally posted by Unkaspam
It gets confusing when people say that light has no mass but does not escape the gravitational radiation of a black hole. Does the r mass of light present enough mass to be pulled into the black hole? Or is it the warp in space-time that leads light into it?
You can look at it from either the perspective of the gravitational influence on particles with relativistic mass-energy, or from the influence of curved spacetime on trajectories. Either way, no object (that travels at less than the speed of light) can escape a black hole.

If electrons can escape the gravitational pull of a black hole by way of virtual pair production then I don't see why light is pulled into the black hole.
Real electrons do not escape a black hole from within the horizon. Neither does light.