2 items with the tag “phoenix

  • Understanding the Early Mars Environment
    NAI 2013 VPL at University of Washington Annual Report

    There is no liquid water on modern Mars, although there is plenty of solid ice. Observations from orbiting satellites and rovers on the ground suggest that liquid water may have flowed over the Martian surface in the distant past. VPL researchers are studying the geologic record of Mars for clues of past water, and investigating climate and chemical conditions under which water would be stable. Team members examined different climate feedbacks and geochemical processes that could have warmed the early Mars. Some members are also active members of the MSL science team.

    This year, team members used climate and interior models to demonstrated that broadening of carbon dioxide and water absorption by volcanically-released hydrogen in Mars early atmosphere may have been enough to raise the mean surface temperature of early Mars above the freezing point of water. We also looked for mechanisms that might have produced the abundant perchlorate molecule found on the Martian surface today.

    ROADMAP OBJECTIVES: 1.1 2.1
  • Understanding the Early Mars Environment
    NAI 2014 VPL at University of Washington Annual Report

    In this task VPL team members use Mars mission data and atmospheric models to understand the early environment on Mars. Areas of research include: the atmospheric formation of salts that have been found on the Martian surface, Early Mars volcanism and atmospheric composition, and possible atmospheric means of warming early Mars. Several VPL team members are also active on the MSL mission and have contributed to scientific discussions of modern geochemistry and the ancient habitability of Mars.

    ROADMAP OBJECTIVES: 1.1 2.1