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A presidential first on another planet?
Autograph of President Obama
Curiosity's deck bears a plaque containing signatures of several high-up U.S. officials, including President Barack Obama and Vice President Joe Biden. Curiosity's MAHLI camera snapped this shot on Sept. 19, 2012.
Full story: http://www.space.com/13742-curiosity-mars-rover-signatures-plaque.html
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