Migrating Martian Dunes

  • submit to reddit

December 31, 1969

Nili Patera, Mars (before and after) Changes in Ripples on Martian Dunes in Nili Patera

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.

› Full image and caption
Nili Patera, Mars (before and after) Changes at Edges of Dark Dunes in Nili Patera, Mars

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.

› Full image and caption
Nili Patera, Mars Location Map for Images of Changing Martian Dunes

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.

› Full image and caption
Nili Patera, Mars Changes on Dune Slip Face, Nili Patera, Mars

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.

› Full image and caption