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Global mineralogical mapping of Mars by the Observatoire pour la Mineralogie, l'Eau, les Glaces et l'Activité (OMEGA) instrument on the European Space Agency's Mars Express spacecraft provides new information on Mars' geological and climatic history. Phyllosilicates formed by aqueous alteration very early in the planet's history (the "phyllocian" era) are(More)
The OMEGA/Mars Express hyperspectral imager identified hydrated sulfates on light-toned layered terrains on Mars. Outcrops in Valles Marineris, Margaritifer Sinus, and Terra Meridiani show evidence for kieserite, gypsum, and polyhydrated sulfates. This identification has its basis in vibrational absorptions between 1.3 and 2.5 micrometers. These minerals(More)
The Observatoire pour la Minéralogie, l'Eau, les Glaces, et l'Activité (OMEGA) investigation, on board the European Space Agency Mars Express mission, is mapping the surface composition of Mars at a 0.3- to 5-kilometer resolution by means of visible-near-infrared hyperspectral reflectance imagery. The data acquired during the first 9 months of the mission(More)
  • Al Diaz, Nasa Hq, +21 authors Nasa Apio Coordinator
  • 2005
About the Roadmap In December 2004, NASA established a number of strategic roadmap teams to provide guidance and priorities for achievement of the nation's space exploration objectives. This was partly in response to the Vision for Space Exploration, as well as to the Presidential Commission on Implementation of United States Space Exploration Policy (the "(More)
Stable isotope ratios of H, C, and O are powerful indicators of a wide variety of planetary geophysical processes, and for Mars they reveal the record of loss of its atmosphere and subsequent interactions with its surface such as carbonate formation. We report in situ measurements of the isotopic ratios of D/H and (18)O/(16)O in water and (13)C/(12)C,(More)
Introduction: We present here an updated view of the location of sulfate and associated ferric oxide deposits , identified through the OMEGA data in Valles Marineris, Margaritifer Terra, and Terra Meridiani [1, 2]. We briefly summarize the factors influencing spectral detections, which are spatial resolution, water ice clouds, suspended dust in the(More)
The formation of low-albedo slope streaks represents one of the most active surface processes presently observed on Mars. Ongoing debate about the origin of such streaks centers on whether they are the products of: 1) erosional processes related to ‘dry’ mass-wasting exposing a dark-toned substrate beneath a thin dust mantle; or 2)(More)
As a planetary geologist, the author has analyzed results of the various space missions. Based upon this knowledge, he examines the benefits for mankind to be derived from exploration of the solar system. Findings from Venus and Mars have a bearing on Earth's history and geological make-up and climate. Plans to utilize the Moon's minerals and gases are(More)
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