Top Viral Photos of 2012

Top Viral Photos of 2012
Activity lead Bobak Ferdowsi, who cuts his hair differently for each mission, works inside the Spaceflight Operations Facility for NASA's Mars Science Laboratory Curiosity rover at Jet Propulsion Laboratory in Pasadena, California August 5, 2012. The Mars Science Lab Curiosity rover is set to land on Mars in the late evening of August 5, 2012. The Mars rover Curiosity, on a quest for signs the Red Planet once hosted ingredients for life, streaked into the home stretch of its eight-month voyage on Sunday nearing a make-or-break landing attempt that NASA calls one of the toughest feats of robotic spaceflight. REUTERS/Brian van der Brug/Pool
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