J-2X Engine Prepares for Testing (NASA, J-2X, SLS, 02/11/13)

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Photo credit: © NG Images / Alamy / Afripics
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Keywords: (nasa, -2, -2x, a2teststand, center, engine, flight, j2x, launch, marshall, marshallspaceflightcenter, nasa, prepares, rocket, rocketengine, sls, space, spacelaunchsystem, stand, stennis, stennisspacecenter, system, test, testing