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Planetologists investigate origin of heavy bombardment of the moon 3.9 billion years ago – Phys.org
The moon was exposed to a heavy bombardment of asteroids 3.9 billion years ago. The origin of this bombardment, however, was…

The moon was exposed to a heavy bombardment of asteroids 3.9 billion years ago. The origin of this bombardment, however, was previously unclear. Planetologists at Münster University have now tested these hypotheses with very precise isotope measurements…
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