Top Ten Space Pictures: Best of 2009

Top Ten Space Pictures: Best of 2009
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Mars's "Labyrinth of the Night" Illuminated

Dunes ripple across Mars's Noctis Labyrinthus--a sprawling region of flatlands cut by canyons, troughs, and pits--in an August picture taken by the Mars Reconnaissance Orbiter and released in October.

The snapshot, taken by the orbiter's HiRISE camera, shows light-colored layers of iron-bearing sulfates and clay minerals exposed near the dune field, which is close to the Martian equator.
— Image courtesy NASA/JPL/University of Arizona
 
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