Zone of the enders the fist of mars
Mars is the fourth planet from the sun and the location of much of the events of the Zone of the Enders series. Mars has been shown to have a sea or an ocean and to be somewhat capable of sustaining ocean life. Near these oceans are oxygen plants that harvest oxygen from the seaweed. It has been noted by the year that Mars was as of yet incapable of sustaining life on its own, and still required stimulus from Earth to fuel it. Mars' moons are Deimos and Phobos , both of which house space technology and Metatron technology of some variety.