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Delta II GRAIL

Delta II launches GRAIL to the moon in final Complex 17 launch

9/10/11 ~ 9:08 a.m.

For the final time from historic Complex 17, the oldest active pad at Cape Canaveral, a Delta II rocket, the last one to launch from Florida, sends NASA's twin GRAIL spacecraft on a mission to orbit the moon. The rocket flew in the Heavy configuration with slightly larger solid rocket boosters than a normal Delta II, for the sixth time. Once arriving on New Years Eve, 2011, after a long low-energy spiral outward from Earth, the GRAIL probes will spend three months studying the moon's gravity, thermal properties and the makeup of its interior.


It was the final launch from Complex 17, which saw is first launch in January 1957 with the Thor IRBM, the predecessor to Delta. Then in 1960, on the first Delta mission, Echo 1, the world's first communications satellite, was launched. And in the six decades since, countless scientific probes such as Mars Pathfinder, Spirit & Opportunity, Phoenix, Genesis, Stardust and many more, plus dozens of GPS satellites and others, all launched from these twin launch pads, A & B.

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