23 October 2022
A Chinese group analyzed lunar samples returned by the CE-5 mission and proposed a new mechanism for how young volcanos took shape on the cooling Moon 2 billion years ago. Scientists previously speculated that the elevated water content or radioactive elements in the lunar interior might have driven volcanism in the late stage of the Moon's life. But the CE-5 data found its mantle source region both dry and lacking in heat-producing substance.
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Fusible mantle cumulates trigger young mare volcanism on the cooling Moon