astronomy.com Mar 10
Artemis 2 inches closer to launch after helium fix:
Technicians have resolved a helium flow issue that forced a rollback to the Vehicle Assembly Building last ...
astronomy.com/space-exploration/artemis-2-inches-closer-to-launch-after-helium-fix/
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Key FactsArtemis II Launch Pushed Back After Helium Fault
Feb 23, 2026 · Reading time: ~45 sec.
Summary created with AI assistance · Source: wired.com
Summary created with AI assistance · Source: wired.com
- An interruption in the helium flow within the SLS interim cryogenic propulsion stage forced a launch delay because helium is required to purge engines and pressurize propellant tanks.
- The fault occurred during a routine operation after two dress rehearsals earlier in the month, and engineers must perform repairs from the Vehicle Assembly Building, eliminating the March 6 launch window as the rocket returns to the hangar.
- NASA indicated preserving an April launch is possible but depends on data review, repair progress, and scheduling, and officials said the failure—also seen in Artemis I testing—could stem from a faulty filter, valve, or connector plate.
- When flown, the ten-day Orion mission will travel farther than any crewed spacecraft—surpassing Apollo 13's 400,171 km on day six—and will splash down off San Diego without a lunar landing, while serving as a crucial systems demonstration for future lunar returns.
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