Mars was once a 'blue planet': Ancient river deltas point to vast ocean – Phys.org

  1. Mars was once a ‘blue planet’: Ancient river deltas point to vast ocean  Phys.org
  2. Scarp-fronted deposits record the highest water level in Mars’ Valles Marineris  Nature
  3. Successful Liquid Lake Conditions in a Cold Martian Paleoclimate  eos.org
  4. To…

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