Billions of years ago, something about the size of Mars smacked into Earth, launching tons of debris that later became the moon. This means life on Earth has always existed beneath this natural satellite -- so how can the moon affect us? Are all those stories about full moons and erratic behavior true? They don’t want you to read our book.

They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/

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