“If you feel like you are trapped in a black hole, don’t give up. There is a way out,” Hawking once said. And it is that the renowned physicist once suggested that objects can fall through black holes into an alternate universe. In fact, he put forward a hypothesis that suggested that the holes were not as black as previously thought , concluding that they emit particles of heat or radiation, a theory that many physicists disagreed with because it contradicted some basic laws of quantum mechanics. This is what is known as Hawking radiation.
Fear of black holes?
Instead of destroying everything that comes close to them, we should not be so afraid of black holes, because you can get out of them, he specified in an article published in the journal Physical Review Letters , together with his colleagues Andrew Strominger, professor of physics at Harvard University (USA), and Malcolm Perry, professor of theoretical physics at the University of Cambridge (England).
If this is so, then it could help solve one of the central paradoxes concerning black holes, that finite region of space whose mass generates a gravitational field so colossal that no material particle, not even light, can escape it.
Hawking’s article addresses a fundamental assumption about black holes: that they do not have “hair.” It had previously been assumed that anything that fell into a black hole would be destroyed and lost forever.
This led to conflicts, as information about the object must be preserved, even if the object itself is completely absorbed, and it was not clear how both could happen. The universe is meant to keep a kind of record of what it contains, even if some objects fall into a black hole and are destroyed, and until now it was thought that information was lost inside the hole along with the objects themselves.
But Professor Hawking insisted since 2015 that any object that fell into a black hole should not lose hope of returning … somewhere. The paradox was resolved because the information is stored at the boundary, what we know as the hole’s event horizon, so it does not come back out of the ‘well’, but instead moves away from its scariest part.
“Black holes are not the eternal prisons you used to think of,” he once said in a speech. “There is a way out.”
That exit that Hawking refers to would not take people to their place of origin, yes. Instead, they would reappear, elsewhere, perhaps even in an alternate universe.
The existence of alternative histories with black holes suggests that this could be possible. The hole would have to be great and if it turned it could have a passage to another universe. But you could not return to our universe , clarified the physicist.
Hawking’s suggestions helped keep some of the most crucial parts of our assumptions about the universe intact.
If it is possible to destroy information, for example, then it is possible to speculate that the past might not exist at all; black holes could wipe out parts of the past.
March 14, 2018 will forever be etched in our hearts as the day one of the greatest minds in history, Stephen Hawking, passed away.
We will miss his ideas, his genius and his humor.
Goodbye, Stephen.
