A huge asteroid hit the planet from orbit

European astronomers have found the cause of the anomalous behavior of the first planet of the solar system — Mercury. According to them, an unusual orbit a celestial body received following a collision with a large asteroid.

The closest planet to the Sun rotates on an unusual orbit
— For two turns around the lights Mercury performs exactly three turns on its axis. Modern astrophysics believes that Mercury had to rotate synchronous orbit — rotation around its axis and around the sun would apply in such a way that the planet would always be looking at a star party. According to most scholars, it did not happen because of the instability in its liquid core, which made the young planet "jump" from synchronous orbit.

Meanwhile, a group of astrophysicists led by Mark Wieczorek of Paris Diderot University has offered the hypothesis that explains modern orbit of Mercury. According to them, it could be the result of a collision with a large asteroid, which "launched" the planet and knocked speed, RIA Novosti reported.

As the researchers explain, during the formation of the solar system of Earth-like planets could equally be obtained as a "normal" and a retrograde orbit. In the latter case, the celestial body rotates around its axis in the opposite direction to the direction of rotation of the luminary. According to their calculations, the orbit of Mercury to be synchronized with the movement of the sun and in fact, and in the other cases. The article notes that Mercury could not get out of this state by itself without a push from another celestial body — A large asteroid.

Destabilize the orbit of Mercury, and take it out of synchronous rotation could race cars, left a crater with a diameter of 250 to 450 kilometers. Found on the surface of about 40 craters, suitable in size. Collisions with larger asteroids would have been enough for instant transition to the current orbit of Mercury. Similar objects have also left about 14 tracks — craters with a diameter of 650 to 1100 kilometers.

Then astrophysics attempted to determine the most probable location of the collision. As a result, the largest number of traces of Mercury and the asteroid collisions were reported on the "edges" of the planet — on the borders of the imaginary hemisphere of Mercury.

Source: www.dni.ru

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