LONDON, 9 April.- The planetary body collided with Earth and the Moon which was formed shock may have had a similar composition of our planet, according to an article published in the journal Nature and could help understand the origin of the Moon.
During the first 150 million years after the formation of our solar system, a giant stellar body, about the size of Mars hit and joined with Earth, causing the expulsion of a giant cloud of rocks and other debris.
Much of the numerical simulations indicate that most of the material formed the Moon come from the merger of the residues in the cloud generated by the giant impact.
The astronomers, led by Alessandra Mastrobuno-Battisti, Institute of Technology of Israel, simulated collisions between protoplanets (small celestial bodies considered planetary embryos) and compared the composition of each planet that survived the impact with the body that hit him.
The results of these simulations was that 20-40% of the bodies hit had a similar planets with which collided composition, while the planets were formed as a result of these shocks tended to have different compositions.
The article notes that combining the results of the simulations can be deduced the celestial body that collided with the Earth, called Theia, must have a similar composition of our planet.
The article’s authors suggest that these results may explain the similarities in composition between the Earth and the Moon and why its composition is different from the other planets of the Solar System.
“Small, but significant differences in the distribution of tungsten isotopes from Earth Moon correspond perfectly to the different amounts of material accumulated by the Earth and the Moon after the impact, “said Professor Richard Walker of the University of Maryland in a statement
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