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There was a diamond planet in the solar system

18.10.2018

Scientists from Switzerland, France and Germany studied the composition of meteorites that fell to Earth in 2008, and announced that in the distant past there was a planet in the solar system in the depths of which diamond crystals grew. According to Popular Mechanics, the size of this planet could be compared with the size of Mercury or Mars.

Almahat Sitta meteorites flew over the Nubian desert in Africa in 2008. Some of them fell into the sand, which allowed researchers to discover several hundred coarse-grained space rocks - ureilites. Diamond crystals up to 100 microns in diameter were found inside the meteorites.

According to one of the hypotheses explaining the appearance of diamonds in meteorites, they are formed as a result of the collision of dense, planet-like solid bodies. At the same time, crystals were found in Nubian meteorites, the sizes of which are 100 times larger than those that should be formed under such conditions. The second hypothesis explains the origin of cosmic diamonds by the condensation of carbon in clouds of interplanetary gas and dust - but such crystals should be even smaller.

The researchers proposed a new explanation - diamond crystals formed in the depths of the protoplanet even before it collided with another celestial body and was destroyed. The analysis of iron sulfide, which was found in meteorites, allowed scientists to establish the possible size of this planet. According to the researchers' calculations, this protoplanet should have been no smaller than Mercury, and possibly even the size of Mars.

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