Space-Time Loops May Explain Black Holes

July 14 [Sun], 2013, 19:39
Physics cannot describe what happens inside a black hole. There, current theories break down, and general relativity collides with quantum mechanics, creating what's called a singularity, or a point at whichthe equations spit out infinities.

But some advanced physics theories are trying to bridge the gap betweenand quantum mechanics, tounderstand what's truly going on inside the . Recently, scientists applied a theory called loop quantum gravity to the case of black holes, and found that inside these objects, space and time may be extremely curved, but that gravity there is not infinite, as general relativity predicts.

This was the first time scientists have applied the full loop quantum gravity theory to , and the results were encouraging, researchers said.

"What they have done is a major step, because they have been able to provide a much more complete description of what really happens near the black hole singularity using loop quantum gravity," said Abhay Ashtekar, a physicist who studies loop quantum gravity at Pennsylvania State University, who was not involved in the new research."We still don't have a clear picture of the details of what happens. So it is opening a new door that other people will follow." []