The explosions in China were massive… « Oregon International Airshow Miss the 535-second long RS-25 engine test? Here's a quick recap of the test firing of the engine that will power NASA's Space Launch System on our #JourneyToMars. Data collected during the test will aid in adapting the former space shuttle engines to the new SLS vehicle mission requirements, including development of an all-new engine controller and software »
yup….I am watching this news.
Could you explain… Please