http://www.mnn.com/earth-matters/space/ ... ew-quantum
Bryan Nelson Sun, Jun 02 2013 at 4:16 PM
According to Albert Einstein's theory of general relativity, black holes are uninhabitable chasms of spacetime that end in a "singularity," or a mass of infinite density. It's a place so bleak that even the laws of physics break down there. But what if black holes aren't so forbidding? What if they are instead some kind of intergalactic stargate, or maybe even a passageway into a whole other universe?
It may sound like the premise for a clever science-fiction movie, but new calculations by quantum physicists now suggest that the stargate idea might actually be the better theory. According to the startling new results, black holes do not culminate in a singularity. Rather, they represent "portals to other universes," reports New Scientist.
This new theory is based on a concept known as 'loop quantum gravity' (or LQG). It was first formulated as a way of merging standard quantum mechanics and standard general relativity, in order to remedy incompatibilities between the two fields. Basically, LQG proposes that spacetime is granular, or atomic, in nature; It is made up of miniscule, indivisible chunks about the same size as the Planck length — which roughly amounts to 10-35 meters in size.