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    3 months ago

    For about half a billion years Earth was mostly molten on the surface. So about 11% of the time. And then we’ve had major glaciation periods especially the cryongenian that lasted 78M years about 640M years ago.

    More info from this Kurzgesagt video on earth’s history: https://www.youtube.com/watch?v=S7TUe5w6RHo