What if the Big Bang wasn't the beginning? Our research suggests it may have taken place inside a black hole

Portsmouth UK (SPX) Jun 17, 2025

The Big Bang is often described as the explosive birth of the universe - a singular moment when space, time and matter sprang into existence. But what if this was not the beginning at all? What if our universe emerged from something else - something more familiar and radical at the same time? In a new paper, published in Physical Review D (full preprint here), my colleagues and I propose a