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A group of scientists from Sweden, Australia and the United States analyzed one of the soil samples that delivered the Apollo 14 mission to Earth from the Moon in 1971. Researchers have reasons to think that it is perhaps the oldest stone of terrestrial origin, writes Science Alert
. A fraction of soil composed of quartz, feldspar and zircon weighs 2 grams. These minerals are rarely found on the moon, but are common on Earth. After a chemical analysis, the scientists discovered that the rock was formed in an oxidized system, similar to the Earth, at a temperature comparable to that of the Earth, but not at the temperature of the moon.
Scientists point out that the rock flew off the Earth about 4 billion years ago when an asteroid or comet crashed on the planet and many went into the cosmos . Debris Some of them could hit the moon because at that time it was almost three times closer to the Earth than now.
The researchers found that rock formation occurred about 4 to 4.1 billion years ago. The rock formed below the surface of the Earth at a depth of about 20 km, where it remained until it was projected into space and then reached the moon.
our planet at the dawn of its life ", – said global scientist David Croing of the Lunar and Planetary Institute.
Previously, scientists may have recorded for the first time in the history of the fall of a meteorite during the lunar eclipse
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