Oh boy, NASA is already halfway done with SLS testing so just another half a decade or so before first flight let's go!!https://twitter.com/NASA_SLS/status/1151895661182427136 …
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Oh boy, NASA is already halfway done with SLS testing so just another half a decade or so before first flight let's go!!https://twitter.com/NASA_SLS/status/1151895661182427136 …