Dr. Aaron Zent, Co-Investigator of the Phoenix Mars Mission, NASA Ames, discusses recent work in the Antarctic finding viable microbes in the dry permafrost of University Valley, relying on only interfacial water to effect exchange with the environment and how that analog impacts the view of ice on Mars, in the above SETI lecture.
Models of the possible history of the martian high latitudes in particular, show that conditions favoring even thicker film development are likely to occur on the timescale of obliquity variations. The discovery of nearly pure ice at the Phoenix landing site is a possible indicator of in situ ice segregation, a physical process that depends on the same films of unfrozen water. We will review all of these recent results, and assess their potential implications for the habitability of the martian regolith.
Models of the possible history of the martian high latitudes in particular, show that conditions favoring even thicker film development are likely to occur on the timescale of obliquity variations. The discovery of nearly pure ice at the Phoenix landing site is a possible indicator of in situ ice segregation, a physical process that depends on the same films of unfrozen water. We will review all of these recent results, and assess their potential implications for the habitability of the martian regolith.
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