• entropicdrift@lemmy.sdf.org
    link
    fedilink
    English
    arrow-up
    3
    ·
    1 year ago

    A planet 9 times the size of earth could still potentially host human life, we’d need to live high up in the sky so the gravity would be lower, but it’s possible

      • Spzi@lemm.ee
        link
        fedilink
        English
        arrow-up
        2
        ·
        1 year ago

        Gravity becomes lower at higher altitudes, or what do you mean?

        • Pantless_Paladin@lemmy.world
          link
          fedilink
          English
          arrow-up
          3
          ·
          edit-2
          1 year ago

          The bigger aplanet, the further away its surface from its center of mass, which decreases gravity. A planet’s surface gravity is mostly affected by its mass and density. This is why Saturn, despite being much bigger than Earth, still have roughly the same surface garvity.