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Tag Archives: University of Arizona
HiRISE: Rhythmic layers east of Medusae Fossae
The surface of this image looks wavy, like that of the sea. These wave shapes are the result of erosion: the removal of material, which has been ongoing for millions, if not billions, of years. This erosion is likely performed … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, layered deposits, Mars Reconnaissance Orbiter, Medusae Fossae, MRO, NASA, University of Arizona, wind erosion
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HiRISE: Tooting Crater ejecta
In this picture we can see a huge tongue-like form, which looks a like a mudflow with boulders on its surface. This “tongue” is only a small part of a larger deposit that completely surrounds Tooting Crater (not visible in … Continue reading
Posted in Reports
Tagged crater ejecta, ejecta, fluidized ejecta, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, Tooting Crater, University of Arizona
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HiRISE: Wisps
Wisps. This rough terrain with prominent, wispy dust streaks is within Mangala Valles. Mangala Valles is a complex system of criss-crossing channels on Mars, located in the Tharsis region. HiRISE Picture of the Day archive. [More at links]
Posted in Reports
Tagged dark slope streaks, dust avalanches, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Mangala Valles, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: In western Mawrth Vallis
In western Mawrth Vallis. The layered deposits here exhibit strong and diverse spectral signatures of clays. HiRISE Picture of the Day archive. [More at links]
Posted in Reports
Tagged clay minerals, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Mars Reconnaissance Orbiter, Mawrth Vallis, MRO, NASA, phyllosilicates, University of Arizona
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HiRISE: A work of art
A work of art. An impressionist painting? No, it’s a new impact crater that has appeared on the surface of Mars, formed at most between September 2016 and February 2019. What makes this stand out is the darker material exposed … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Mars Reconnaissance Orbiter, MRO, NASA, recent impacts, University of Arizona
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HiRISE: A song of dune and ice
A song of dune and ice. This image shows rare dunes superposed on elements of the polar cap near Olympia Undae, which is a vast dune field in the north polar region of Mars. HiRISE Picture of the Day archive. … Continue reading
Posted in Reports
Tagged dunes, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Mars Reconnaissance Orbiter, MRO, NASA, north polar ice cap, north polar sand sea, Olympia Undae, sand dunes, University of Arizona
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HiRISE: Valleys in a crater north of Sacra Sulci
Valleys in a crater to the north of Sacra Sulci. Small valleys similar to these have been dated to the Hesperian and Amazonian epochs in other areas of Mars, making them some of the youngest features formed by the flow … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Mars Reconnaissance Orbiter, MRO, NASA, Sacra Sulci, University of Arizona, valley networks, valleys
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HiRISE: Dipping layers
Dipping layers. These aren’t dipping dots. The objective of this observation is to examine several sets of dipping layers in a depression in Ismeniae Fossae, which straddles the southern highlands/northern lowlands of Mars. HiRISE Picture of the Day archive. [More … Continue reading
Posted in Reports
Tagged crustal dichotomy, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Ismeniae Fossae, layers, Mars Reconnaissance Orbiter, MRO, NASA, sedimentary basins, sedimentary deposits, University of Arizona
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HiRISE: Still life with an impact crater
Still life with an impact crater. Ice fill within a crater in the north polar layered deposits (NPLD) may be a site where accumulation could be observed, helping to settle a long-term problem in Mars polar science: are the NPLD … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, ice, Mars Reconnaissance Orbiter, MRO, NASA, north polar layered deposits, north polar region, University of Arizona
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HiRISE: An interesting layered deposit
An interesting layered deposit. The objective of this observation is to examine layers in an impact crater, located in Galaxias Fossae. Pictures like this will help us put together a geological history of the region. Note the indentation on the … Continue reading
Posted in Reports
Tagged Galaxias Fossae, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, ice-rich mantling, layered deposits, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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