The Space Launch System (SLS) rocket’s core stage for the Artermis I lunar mission has successfully completed its first four Green Run tests.
Green Run is a demanding series of eight tests and early 30 firsts: first loading of the propellant tanks, first flow through the propellant feed systems, first firing of all four engines and first exposure of the stage to the vibrations and temperatures of launch.
On 5th August, NASA engineers completed the fourth of eight planned tests of the 212-foot-tall core stage.
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