The moons orbiting Jupiter and Saturn appear to have subsurface oceans — tantalizing targets in the search for life beyond Earth. But it’s not clear why these seas exist at all.
  • Psiczar@aussie.zone
    1·
    1 year ago

    Not an expert but I imagine it’s the ocean depth. If the atmosphere above determines the temperature, and the ice at the surface acts as an insulator, the deeper parts of the ocean don’t get cold enough to freeze.