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xiaohaiyuwen283

@xiaohaiyuwen

What were early Earth's tides like? If you can picture the Moon hanging in the sky like a fist, you are getting close. It was not the quiet neighbor it is today. It was a bully, sixteen times closer-The story is true. Four billion years ago-the Moon was just 22,500 kilometers away-its gravity was a chain. Yanked hard on the planets new oceans. The tides were monsters. Not waves.
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