Wednesday, June 15, 2016

Are remains of an ancient asteroid – El Universal

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Sweden. Swedish scientists found evidence of what may be the first documented example of a meteorite “extinct”, ie, a type of racing car that does not fall on Earth today because its parent body has been consumed by the collision.

in addition, it is thought that the crash was a thousand times that happened with the meteorite that wiped out the dinosaurs hundreds of millions of years later and resulted in specific changes that resulted in a higher level of biodiversity, almost comparable with the actual. The meteorite was found in southern Sweden, in the quarry Thorsberg, and it is possible that the asteroid that produced it no longer exists. That is, this discovery allows us to have a fossil record invaluable on Earth of what happened in space millions of years ago, and it becomes the only evidence of its existence.

The discovered meteorite, according to a study published in Nature Communications , it is a dark rock that does not exceed 10 centimeters and is called “Öst 65″.

in the words of Birger Schmitz, researcher Lund University in Sweden, we are faced “one of the most important events in the history of evolution and is a crucial step in our own evolutionary line”.

also, research published by Nature Communications reports that the scientists had to conduct an analysis of oxygen isotopes and chromium, which helped to show that the composition of the new finding is totally different from any of the more than 50,000 known meteorites so far .

what is not yet known with certainty is whether the parent body “Öst 65″ was one of the original asteroids or it was a fragment of a larger object. In summary, this study opens the possibility of reconstructing important aspects of the history of the solar system looking in the sediments of the Earth to understand what happens in the sky.

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