Last updated on April 23, 2014 at 20:00 EDT
Mars Maze
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Mars Maze

October 31, 2011
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a plain southeast of Hebrus Valles that is cut by a network of intersecting troughs. Large, windblown—and perhaps wind-eroded—ripples occur on the trough floors.

Credit: NASA/JPL/Malin Space Science Systems