NASA has delayed the launch of its historic Artemis II moon mission, now targeting March for the earliest possible liftoff, following technical issues during a critical prelaunch test. The mission was previously scheduled for as early as February 8.
The delay was announced after NASA completed a wet dress rehearsal of its Space Launch System rocket. Cold weather caused a late start, and engineers encountered hydrogen leaks while fueling the vehicle.
NASA completed a wet dress rehearsal for the Artemis II mission in the early morning hours on Feb. 3. To allow teams to review data and conduct a second wet dress rehearsal, NASA will now target March as the the earliest possible launch opportunity for the Artemis II mission.… pic.twitter.com/jSnCUPLQb6
— NASA (@NASA) February 3, 2026
NASA said the setback will allow teams to analyze data and conduct an additional rehearsal to improve launch readiness.
NASA Administrator Jared Isaacman said such challenges were expected and underscored the importance of testing ahead of crewed flight.
When launched, Artemis II will carry four astronauts, including three Americans and one Canadian, on a 10-day journey around the moon. The crew will reenter quarantine closer to the revised launch date.
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