WATCH: Stephen Hawking: Black holes are a PORTAL to another universe
In a newly published paper, the eminent physicist has theorised that black holes, which scientists still know little about, could be a portal to another universe.
It had been thought that black holes have such a strong gravitational pull that even light cannot escape from them and that they are all consuming of everything within their reach.
However, the 74-year old has now said that they might not be as dangerous as previously thought and may just be a door to another universe.
Writing in a paper, alongside Andrew Strominger from Harvard and Malcolm Perry from Cambridge University, Hawking addressed the belief that black holes have “no hair”.
The study, Physical Review Letters, said that anything that went into a black hole was lost forever.
However, the basic laws of the universe state that anything that has ever been in the universe is preserved via its “information”.
This led to a paradox as it was assumed that anything that fell into a black hole was gone.
But since last year, Hawking has been stating that all is not lost inside a black hole.
He said last year: “Black holes are not the eternal prisons they were once thought.
“If you feel you are trapped in a black hole, don’t give up. There is a way out.
“The existence of alternative histories with black holes suggests this might be possible.
His latest paper states that black holes do indeed have “hair” which either stores the information on the boundary or the event horizon.
This would mean, according to the paper, that if you were looking at a black hole in the right way – in the distant future for example – you would be able to see the hairs of a black hole which store the information.
“The hole would need to be large and if it was rotating it might have a passage to another universe. But you couldn’t come back to our universe.”