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To a planetary scientist who is familiar with lunar geology, yes that is recent. It was widely believed after Apollo that the lunar core shut off and plate tect
by garmaine 5y ago
To a planetary scientist who is familiar with lunar geology, yes that is recent. It was widely believed after Apollo that the lunar core shut off and plate tectonics stopped soon after formation. 2Gya is a long time from now, but it is also almost equidistant from lunar formation. So the title here ought to be “the Moon was geologically active for almost 2 billion years after formation” which IS surprising.
- spfzero 5y agoThanks for the insight.