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If any humans had been alive 2 to 4 billion years ago, they may have looked up and seen a sliver of frost on the moon’s surface. Some of that ice may still be hiding in craters on the lunar surface today.
If any humans had been alive 2 to 4 billion years ago, they may have looked up and seen a sliver of frost on the moon’s surface. Some of that ice may still be hiding in craters on the lunar surface today.