Science
NASA postpones second SLS Green Run test – SpaceNews
NASA announced Feb. 22 that the SLS Green Run static-fire from Feb. 25 test would be delayed because of a valve problem.
WASHINGTON Just days after NASA said it was ready to perform a second static-fire test of the Space Launch System core stage, the agency announced Feb. 22 that the test would be delayed because of a valve problem.
NASA said it was postponing the Green Run static-fire test, which had been scheduled for Feb. 25, after discovering a problem with one of eight valves called prevalves associated with the stages four RS-25 main engines. The valve, which supplies liquid oxygen, was not working properly,…
