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The astronauts discovered the oldest moon rock during the Apollo 14 mission in 1971 and made it on the planet for further analysis 48 years later, experts thought the rocks were part of the Earth and ended up reaching the moon. Collision of a big comet or an asteroid on a planet.
According to the Daily Mail website, NASA researchers estimate that the impact of the collision caused the rocks to be sent into space and then landed on the moon. At that time, the moon was three times larger than the Earth today..
The rocks were then mixed with other materials on the moon, then partially melted 3.9 billion years ago and buried under the surface. The asteroid hit the moon ago. 26 million years ago and researchers believe that this effect has helped bring the rocks back to the moon..
"This is an unusual discovery that helps to paint a better picture of the Earth at an early date and the collision that has transformed our planet," said NASA research scientist David Kring, who led the research.
Experts have discovered that the moon rock has formed at temperatures similar to those of the present Earth, crystallizing at about 20 km below the surface between 4 and 4.1 billion years ago.
The team identified ground materials after developing techniques for locating impact fragments in the lunar soil and found that the 2-gram part of the rocks consisted of quartz, feldspar and zircon, all present on Earth and "very unusual" on the Moon..
The sample must have been formed at enormous depths, in the mantle of the moon, where there are different rock structures..
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