• Kornblumenratte@feddit.de
    link
    fedilink
    arrow-up
    10
    ·
    8 months ago

    If I’m not mistaken, Luna is the only moon of same stone and lava as it’s parent planet. Charon, too, maybe?

    • dubyakay@lemmy.ca
      link
      fedilink
      arrow-up
      4
      ·
      8 months ago

      The verdict is still out on the formation of Earth’s only natural satellite, the Moon. But yes, it may be mostly composed of ejecta from Earth after it collided and merged with another protoplanet.