A grain of moon dust collected by the Apollo 17 mission hides millions of years of history

Since 1972, astronauts have not stepped on the Moon again. That makes the samples collected by the Apollo 17 mission a valuable treasure from which a new facet has been discovered. A group of researchers was able to observe individually the atoms of a single grain of lunar dust thanks to a new technique known as atomic probe tomography, which will provide a detailed view of the composition of the lunar soil and facilitate future missions to the Moon. According to the researchers, a tiny grain of lunar soil contains millions of years of history.

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