On the 25th Anniversary of the Apollo 11 (the first moon landing mission) launch, Marshall Space & Flight Center celebrated with a test firing of the Space Shuttle Main Engine (SSME) at the Technology Test Bed (TTB). This drew a large crowd who stood in the fields around the test site and watched as plumes of white smoke verified ignition.

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Photo credit: © ART Collection / Alamy / Afripics
License: Licensed
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Keywords: 11, 25th, anniversary, apollo, bed, engine, main, shuttle, space, ssme, stand, technology, test