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NASA Delays Moon Rocket Launch, Will Return to Hangar for Repairs
The space agency says the rocket will make a 4-mile trek back to the Vehicle Assembly Building to fix a helium system issue.
Feb. 23, 2026 at 12:15am
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NASA's giant moon rocket is being returned to the hangar this week for more repairs before astronauts can attempt to launch it. The space agency said the rocket is grounded until at least April as engineers work to fix a problem with the helium system that arose after they had just resolved hydrogen fuel leaks. The Artemis II mission, which will send four astronauts around the moon, remains on standby as the repairs are made.
Why it matters
The Artemis program is NASA's ambitious plan to return humans to the moon for the first time since the Apollo era. This latest delay in the launch of the Space Launch System rocket is a setback, as NASA only has a limited number of launch windows each month to attempt the high-profile mission.
The details
After completing a repeat fueling test on Thursday to address hydrogen fuel leaks, NASA discovered a new issue with the rocket's helium system. The disruption in helium flow, which is needed to purge the engines and pressurize the fuel tanks, has forced the agency to roll the rocket back to the Vehicle Assembly Building for repairs. NASA says it's targeting Tuesday for the 4-mile trek across Kennedy Space Center, weather permitting.
- NASA had planned to launch the Artemis II mission on March 6, but that date has been pushed back due to the latest technical issue.
- The space agency is now aiming for an April launch attempt, but stressed that will depend on how the repairs go.
The players
NASA
The U.S. National Aeronautics and Space Administration, the federal agency responsible for the country's public space program and aeronautics and space research.
Artemis II
The second mission in NASA's Artemis program, which aims to return humans to the moon for the first time since the Apollo era. Artemis II will send four astronauts on a flight around the moon.
What’s next
NASA says the quick rollback to the Vehicle Assembly Building is intended to preserve an April launch attempt for the Artemis II mission, but the agency stressed that will depend on how the repairs to the helium system go.
The takeaway
This latest delay in the Artemis II launch highlights the technical challenges NASA continues to face as it works to return humans to the moon. The space agency must resolve these issues before it can proceed with this high-profile mission, which will be the first crewed lunar flight since the Apollo program ended over 50 years ago.
