Last updated on April 20, 2014 at 8:28 EDT
Into the Void
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Into the Void

October 28, 2013
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a portion of a chain of pits on a lava- and dust-covered plain northwest of Tharsis Tholus—one of the many volcanic constructs in the Tharsis region of Mars. Pit chains, such as this one, are associated with the collapse of surface materials into subsurface voids formed by faulting and expansion—or extension—of the bedrock. MGS MOC Release No. MOC2-1465, 17 May 2006

Credits: NASA/JPL/Malin Space Science Systems