If Stephen Hawking were alive, this year he could have the Nobel Prize and it also takes us one step further to confirm that at least time loops can be possible in this universe, at least in the circumstances of the environment of a black hole.
Stephen Hawking unfortunately died in 2018, but when he died none of his theories had been proven and Nobel Prizes are given for proven theories or concrete achievements. On September 10, a paper was published, which is a proof of one of Hawking's theories, Hawking's area law and the Kerr nature of black holes.
It is an investigation and it is the clearest observational evidence to date of Hawking's area law, which shows that Stephen Hawking was right, and if he were alive the doors of the Olympus of Nobel Prizes would open.
The published research refers to an investigation from January 14, 2025. At that time, the LIGO observatory detected an extremely strong gravitational wave signal and it was the result of the merger of two black holes, that signal has the strange name of GW250114, that signal had a signal-to-noise ratio, noise as astrophysicists understand, much greater than any other previously detected, which allowed scientists to carry out an in-depth and much more precise analysis than what had been achieved. with other detections of gravitational waves.
Hawking's area law, also known as the second law of black hole mechanics, states that the total area of the event horizon of black holes can never decrease, it has to increase. By analyzing those gravitational waves detected in January, the researchers were able to calculate the areas of the two initial black holes that collided, that merged and they also calculated the final resulting black hole and the data showed with high reliability that the area of the final black hole was greater than the sum of the areas of the two black holes that merged. they merged.
This was what Hawking theorized and also verified the nature of Kerr, the research confirmed that this final black hole product of the merger behaved exactly as predicted by Kerr's theory of a black hole, that is, a rotating hole, and this coincides with the predictions of Einstein's theory of general relativity for a rotating black hole, which also brings us another curious paradox and that is that at least this detection and at least in this case confirms that black holes are defined solely by their mass and for its angular momentum.
This states that a black hole can be described only by three properties observable from the outside, its mass, its electric charge and its angular momentum, and this leads us to the “paradox of information” and that is that what falls into a black hole, including the information, of all the particles that make up what falls inside, of all the data that also make up our particles, our bodies, all the information is lost, it cannot be recovered and this generates a paradox because there is a principle of quantum physics that says that information cannot be recovered. It can be destroyed, it is transformed into something else.
But it also leads us to something else, because Kerr's black holes, that is, those that spin, those that rotate, are involved in another different theory about the possibility of time travel, since rotating a black hole would deform the space-time in its environment so much that it would create a time loop zone, if you had a ship and you managed to get into a loop with it, in that time loop zone, and according to this theory, the bigger the black hole, the better, because the eye of lock, as they sometimes call it, would be larger and would be more stable.
At the moment with this research, it is a verification of Hawking's theory, it is an analysis of something real, on the gravitational waves that LIGO detected in January, but the time loop is still theory, what happens is that if that black hole rotates, according to the theory of time travel that defends this type of time loop, there is every chance that these loops may exist.
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