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Hydrated silicate minerals on Mars observed by the Mars Reconnaissance Orbiter CRISM instrument
Bibring, J. -P.; Arvidson, R. E.; Langevin, Y. +33 more
Phyllosilicates, a class of hydrous mineral first definitively identified on Mars by the OMEGA (Observatoire pour la Mineralogie, L'Eau, les Glaces et l'Activitié) instrument, preserve a record of the interaction of water with rocks on Mars. Global mapping showed that phyllosilicates are widespread but are apparently restricted to ancient terrains…
Heterogeneous chemistry in the atmosphere of Mars
Montmessin, Franck; Bertaux, Jean-Loup; Perrier, Séverine +6 more
Hydrogen radicals are produced in the martian atmosphere by the photolysis of water vapour and subsequently initiate catalytic cycles that recycle carbon dioxide from its photolysis product carbon monoxide. These processes provide a qualitative explanation for the stability of the atmosphere of Mars, which contains 95 per cent carbon dioxide. Bala…