Parajumpers from the Air Force 920th rescue wing remove a flotation collar from a full-size mockup of NASA's crew module for the Orion Crew exploration vehicle at the Cape Canaveral Air Force Station in Cape Canaveral, Florida, April 8, 2009. The Orion spacecraft will become the primary U.S. vehicle for human space exploration after the retirement of the space-shuttle fleet in 2010. (Xinhua/Reuters Photo)
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