Source: Pixabay + NASA / JPL-Caltech / UCLA composite
According to physicist Roger Penrose, a former associate of Stephen Hawking, this universe was not the first – there were others before that, and everyone had their share of black holes. One of the things that makes black holes so special is that they spit out the Hawking radiation – a combination of positive and negative gravitons and photons, half of which escapes into the universe and half falls back into the black hole's negative mass and energy. The positive gravitons and photons that escape are thrown around the stars, but here's the thing: neither photons nor gravitons have mass, which allows them to do weird things. It is these particles that Penrose believed led to the Big Bang – instead of a singularity, it was actually an earlier life expectancy of Hawking radiation to bursting.
But what about the black holes? Well, it turns out that the decay of these earlier black holes has shaped the cosmic background radiation, the echoes of what we call the Big Bang. By scanning certain frequencies, Penrose and his team believe that they have found the ghostly afterimages of the black holes of the old universe preserved in radiation.
The theory is still highly theoretical, but if right, it will break up everything we know about our universe.