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Images taken 15 months apart show active changes in dark dunes of Mars' Nili Patera region.
Changes in Ripples on Martian Dunes in Nili Patera
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Three pairs of before and after images from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter illustrate movement of ripples on dark sand dunes in the Nili Patera region of Mars.
Image Credit: NASA/JPL-Caltech/University of Arizona/International Research School of Planetary Sciences
Changes at Edges of Dark Dunes in Nili Patera, Mars
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Two pairs of side-by-side, before and after images from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter illustrate changes in the shape of edges of dark sand dunes in the Nili Patera region of Mars.
Image Credit: NASA/JPL-Caltech/University of Arizona/International Research School of Planetary Sciences
Changes on Dune Slip Face, Nili Patera, Mars
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Before and after images from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter illustrate occurrence of new streaks on the slip face of a dark sand dune in the Nili Patera region of Mars. The slip face is on a dune's downwind side.
Image Credit: NASA/JPL-Caltech/University of Arizona/International Research School of Planetary Sciences
Location Map for Images of Changing Martian Dunes
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The upper portion of this map is from an observation by the Context Camera on NASA's Mars Reconnaissance Orbiter of a field of dark sand dunes in the Nili Patera region of Mars. The white inscribed rectangles show overlapping footprints of observations made by the same orbiter's High Resolution Imaging Science Experiment camera 15 months apart. The black inscribed boxes show locations of two portions of the image seen in magnified view below, "b" on the left and "c" on the right.
Image Credit: NASA/JPL-Caltech/MSSS
Guy Webster 818-354-6278
Jet Propulsion Laboratory, Pasadena, Calif.
guy.webster@jpl.nasa.gov