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Watch how the Space Launch System rocket RS-25 undergoes a core stage engine test-fire. Credit: NASA's Stennis Space Center ...
Like all sponsors of science programs, NASA has had its ups and downs. What makes it unique is that its achievements and failures almost always happen in public.
See footage Orion Spacecraft, moon and Earth shortly before its "outbound powered flyby burn". Orion was less than 2000 miles ...