1. NASA postpones second SLS Green Run test  SpaceNews
  2. NASA Welds First Confidence Article for New SLS Rocket Stage  NASA
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NASA announced Feb. 22 that the SLS Green Run static-fire from Feb. 25 test would be delayed because of a valve problem.NASA announced Feb. 22 that the SLS Green Run static-fire from Feb. 25 test would be delayed because of a valve problem.

NASA postpones second SLS Green Run test - SpaceNews

Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans.Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans.

NASA Welds First Confidence Article for New SLS Rocket Stage | NASA