Barchan Dunes on Mars

Barchan Dunes on Mars

The Mars Reconnaissance Orbiter's high-resolution imager HiRISE captured this false-color image of barchan sand dunes. They form when the wind blows predominantly in one direction. The “horns” of these crescent-shaped dunes point in the direction the wind is blowing. Barchan dunes are common on Mars and Earth.

  • NASA-PIA17981

  • Copyright/Owner: NASA/JPL-Caltech/University of Arizona
  • Source: NASA/JPL-Caltech/University of Arizona