The Moon's Time Capsule

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Scientists believed the moon formed from gravitational attraction of small particles floating in space. The Earth buries its ancient past with plate tectonics, but the moon is a world frozen in time. Almost any rock the astronauts stumbled over has not been altered and quite likely has not been moved since long before the appearance of man on Earth.

In all our searching of the universe, we’ve never seen another moon like ours. It's big, it's weird, and it has played a huge role in shaping our planet. But how did we get it? Every possible story points to cataclysm.

This episode originally ran on June 15, 2022. It is part of our Lost Worlds series exploring scientific mysteries buried in the deep past.

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