17 June 2022
An in-situ detection by the Chang'e 5 lunar probe and the subsequent analysis of its returned samples revealed at least 2 sources of water on the Moon, one brought by solar wind and the other from indigenous sources. It's traditionally proposed that the lunar water was implanted by solar wind or the result of a meteorite or comet impact. Also, minerals like apatite containing indigenous water are believed to be present in small quantities and unevenly distributed on the lunar surface. Scientists at the Chinese Academy of Sciences found new evidence of water on the lunar surface based on CE-5 in-situ spectra and lab results of returned samples. Their findings revealed that the apatite found at the young mare region where CE-5 landed contained indigenous water in the form of hydroxyl.
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