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The Moon's Biggest Crater Tells a New Story

For decades, the dramatic difference between the Moon's two faces has been the subject of much debate. Now, a fresh look at the Moon's largest and oldest impact crater has revealed something quite unexpected. The asteroid that formed it seems to have hit from the opposite direction than everyone thought, and it created a radioactive splash zone that may finally explain the mystery. Even better, NASA's Artemis astronauts are about to land right in the middle of it.

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