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Liftoff RBSP
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Liftoff RBSP

September 6, 2012
The engines ignite under the United Launch Alliance Atlas V rocket at 4:05 a.m. EDT lifting NASA's Radiation Belt Storm Probes, or RBSP, off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. Photo credit: NASA/Rusty Backer Aug. 30, 2012