Space-Time Loops May Explain Black Holes
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 which the equations spit out infinities.
But some advanced physics theories are trying to bridge the gap between general relativity and quantum mechanics, to understand what’s truly going on inside the densest objects in the universe. 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.