• betanumerus@lemmy.ca
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    2 hours ago

    The molten core is hot because a whole lot of rocks crashed into each other. Also, nuclear decay.

    • NotMyOldRedditName@lemmy.world
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      47 minutes ago

      Well… those are remnants of a supernova aren’t they? So the velocities to have meaningful impacts came from a sun?

      Definitely not what I was thinking or trying to say though, and not our sun, but kinda still all the energy comes from at least, a sun.