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[DIGEST: IFLS, Science Alert]

The Apollo missions from 1969-1974 were uniquely unifying events and significant technological achievements for humanity. The 842 pounds of moon rocks recovered by the Apollo astronauts led to discoveries about the origins of the Earth-Moon system. These findings were based on the similar densities and crustal compositions of both bodies. Although researchers initially assumed that the Moon was dry, recent revelations gleaned from the Apollo samples have revealed the presence of water within the rocks. This surprised astronomers because lunar surface temperatures can reach 253 degrees Fahrenheit, which should have boiled away any water.

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