Full Moon by Gregory H. Revera / CC BY-SA 3.0

How Was the Moon Made? We Won’t Know Until We Go Back

Jul 10, 2019

By Rebecca Boyle

David Scott and James Irwin traveled to the moon with a shopping list. Geologists wanted the two men, Apollo 15 astronauts, to collect samples that would shed light on the moon’s mysterious formation and early years. On their second day there, Aug. 1, 1971, Mr. Scott and Mr. Irwin hit the jackpot.

They were taking samples inside the moon’s Mare Imbrium, or Sea of Rains, when Mr. Scott saw an unusual rock. He walked up to it, lifted it and dusted it off. Mr. Irwin saw right away that the rock was special.

“Oh, man!” Mr. Irwin shouted. “Look at the glint!”

Both astronauts shouted with glee.

“I think we found what we came for,” Mr. Scott radioed Houston.

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