An RS-25 - same design as those on Space Shuttle - was hot-fired for 500 seconds on June 11th, 2015. Four such engines will power the core booster of NASA's forthcoming Space Launch System.
An RS-25 - same design as those on Space Shuttle - was hot-fired for 500 seconds on June 11th, 2015. Four such engines will power the core booster of NASA's forthcoming Space Launch System.
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