Dunes in etch pits and troughs in Crommelin Crater in the Oxia Palus area. This 3.2 x 3.5 km image (frame 3001) is centered near 4.1 degrees north, 5.3 degrees west, taken by NASA's Mars Global Surveyor Orbiter.

Dunes in etch pits and troughs in Crommelin Crater in the Oxia Palus area. This 3.2 x 3.5 km image (frame 3001) is centered near 4.1 degrees north, 5.3 degrees west.

Figure caption from Science Magazine.

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