2023-11-10 18:01:00
According to a study in the journal Nature published on November 1, 2023, the remains of a planet could be found beneath the earth’s surface, a remnant of an ancient collision with another star called Theia.
A planet would have collided with ours billions of years ago, leaving some scars, according to the authors of this study published by the journal Nature beginning of November.
Theia, a vanished exoplanet, would have left traces on the blue planet when it was forming, even going so far as to play on the creation of the Moon.
The scientific community “broadly agrees that an ancient planet likely crashed billions of years ago into the then-forming Earth, creating debris that coalesced to form the moon.”
The giant impact theory
This is not the first time that such a hypothesis has been raised, although this new study poses CNNgives new elements concerning the disappearance of Theia. This collision between the two stars would be “the most violent event suffered by the Earth”.
This mysterious exoplanet has vanished, leaving a void for scientists who are looking for the last traces of it. It is on Earth that it could have left some after a giant collision. For the lead author of the study, geophysicist Qian Yuan: “It’s very, very, very exciting.”
“Blobs” under our feet?
If the Theia hypothesis was already known, this study provides details on what remains of it. About 1,800 miles (2,900 kilometers) below Earth’s surface, pieces of Theia are believed to have merged with the crust of the blue planet. The existence of this debris would explain the two massive “blobs”, or spots, which reside under the Pacific Ocean and the African continent.
Each of these “blobs” is larger than the Moon, their origin since their discovery in the 1980s has been a mystery. Since this impact, Theia has disappeared, leaving behind only gargantuan fragments.
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