Loop quantum gravity is a theory that uses quantum mechanics to extend gravitational physics beyond Einstein’s theory of general relativity. Previous work in loop quantum gravity analyzed the quantum nature of the Big Bang, and now two new works, published in the journal Physical Review Letters and the journal Physical Review D, extend those results to black hole interiors.
Black holes are mysterious objects with an outer edge called an event horizon, which traps everything including light.
Einstein’s theory of general relativity predicted that once an object falls inside an event horizon, it ends up at the center of the black hole called a singularity where it is completely crushed.
At this point of singularity, gravitational attraction is infinite and all known laws of physics break down including Einstein’s theory.