NASA Finds Lunar Regolith Limits Meteorites as Source of Earth’s Water

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NASA Finds Lunar Regolith Limits Meteorites as Source of Earth’s Water

A close-up view of a portion of a “relatively fresh” crater, looking southeast, as photographed during the third Apollo 15 lunar surface moonwalk.

Credit: NASA

A new NASA study of its Apollo lunar soils clarifies the Moon’s record of meteorite impacts and timing of water delivery. These findings place upper bounds on how much water meteorites could have supplied later in Earth’s history.