Wormholes, the passages that connect one universe or time to another, are still only theoretical – but that does not mean that physicists are not looking for them. In a new study, researchers describe how to find holes in the folds of our galaxy.
These hypothetical passages, created by folding an area of space like a piece of paper, are predicted by Einstein's theory of general relativity. But they require extreme gravity conditions, such as those around supermassive black holes.
In a new study, two researchers came up with a method to find worm holes near their home, around the central, supermassive black hole of the Milky Way, called Sagittarius. A *. If there was a wormhole around Sagittarius A *, the stars on one side of the passage would be influenced by the gravity of the stars on the other, researchers said
Related: 5 Reasons We Can Live in a Multiverse [IfphysicistscandetectsmallchangesintheexpectedorbitsofstarssuchasastarcalledS2orbitingA*thismayindicatethatawormholeisclose researchers say in statement .
Current methods are not sensitive enough to see slight changes in orbit that would be caused by a star at the other end of a wormhole, but new techniques and longer observations may make this possible in the next few decades, a study co-author Dejan Stojkovic, a cosmologist and professor of physics at the University of Buffalo College of Arts and Sciences, said in a statement.
However, even detecting these slight changes in orbit would not prove that the worm is nearby, he added. "When we reach the precision required in our observations, we can say that the worm is the most likely explanation if we find disturbances in the S2 orbit," Stojkovic said. "But we can't say 'Yes, it's definitely a worm'." This is because other unknown celestial objects on our side of the wormhole can also exert gravitational pull and cause changes.
But not everyone is convinced
The altered trajectory of the star due to a wormhole is "inconspicuous, no matter how accurate the measurements are," Sergei Krasnikov, a physicist at the Central Astronomical Observatory in Pulkovo, Russia, wrote in a commentary. in research. published on prepress server arXiv . That's because even with more accurate measurements, astronomers can only measure the total acceleration of a star, not the additional acceleration caused by the gravitational influence of a star from the other end of a wormhole, he writes.
And even if a wormhole has ever been found, it may not be open to navigation.
Humans and spacecraft are unlikely to be able to pass through a worm hole because "you will really need a source of negative energy to hold the worm hole, and we don't know how to do it," Stojkovic said. "You need magic to create a huge stable hole."
The results were published October 1
Originally published by Live Science .