Science and technology

Associated Press
FILE -In this Sunday Aug. 5, 2012 file photo,  flight director for the Mars rover Curiosity 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, JPL in Pasadena, Calif. on Sunday, Aug. 5, 2012. The Curiosity robot is equipped with a nuclear-powered lab capable of vaporizing rocks and ingesting soil, measuring habitability, and potentially paving the way for human exploration. (AP Photo/Los Angeles Times, Brian van der Brug, Pool)

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