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Photos: NASA Launches Twin Grail Gravity Probes to the Moon

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Straight Shot to the Moon

Credit: NASA/Kenny Allen
A Delta 2 Heavy rocket propels NASA's twin Gravity Recovery and Interior Laboratory (GRAIL) mission into the clouds over Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT on Sept. 10, 2011.