Space Launch System: Preliminary Design Review

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The SLS Preliminary Design Review (PDR) was held July 31 at NASA's Marshall Space Flight Center, Huntsville, Ala., where some 20 NASA representatives signed the SLS PDR certificate validating the SLS Program has demonstrated readiness to proceed to the next major milestone review. (NASA/MSFC)

Published 2013-08-01 · Watch on YouTube ↗
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