The first samples from the far side of the Moon show more recent volcanic activity than previously believed, altering previous theories about lunar volcanism.
Scientists evaluated the samples using radiometric dating and found the material to be about 2.8 billion years old, signaling volcanic activity after earlier theories suggested it had ceased.
The studies reveal the samples collected contain low levels of KREEP, indicating a different geochemical composition than expected, which may influence our understanding of lunar geology.
International collaboration marked the research efforts, with both US and Chinese researchers co-authoring findings despite legal barriers on NASA's involvement in Chinese space research.
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