Chang'e 5 continues to break new ground.
called Volatiles Investigating Polar Exploration Rover that will land in late 2023 or so just west of Nobile Crater, which sits near the moon's south pole.
Water has a distinctive spectral signature that was expected to show in the measurements from Chang'e 5's lunar mineralogical spectrometer, which was designed to look for water. The challenge, however, was the intense heat at the lunar surface, which at first obscured the measurements, Chinese team representatives said in a press release from the Chinese Academy of Sciences.
The researchers used a"thermal correction model" to account for the heat and then saw the water signature pop out at 2.85 micrometers, the release said. That said, the water found was not much, at roughly 120 parts per million in the regolith and 180 parts per million in a light rock.in December 2020, making it the first probe to bring back material from the moon since Luna 24 in 1976.
"This [proportion of water] is consistent with the preliminary analysis of the returned Chang'e 5 samples," officials said in the press release. , the constant stream of charged particles coming from our sun. But there is a more complicated origin story concerning the lunar rock, whose water likely came from the lunar interior.
Analyzing the rock's composition and comparing that with remote sensing from orbit"show that the rock may have been excavated from an older basaltic unit and ejected to the landing site of Chang'e 5," researchers said in the press release.
France Dernières Nouvelles, France Actualités
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