NASA Postpones Launch of Landmark Moon Mission

UPDATE: Feb. 3, 12:30 p.m. ET: NASA is now targeting March for the earliest possible launch of its Artemis II mission, the agency announced early Tuesday, following technical issues during a key prelaunch test. The mission, which will send astronauts around the moon for the first time in more than 50 years, had previously been expected to lift off as soon as Feb. 8.

The updated timeline came after NASA completed a wet dress rehearsal, a full-scale test of the Space Launch System rocket that simulates launch day procedures, including fueling the vehicle with propellant. The rehearsal began late due to cold weather conditions at Kennedy Space Center and encountered several complications.

Hydrogen Leaks and Weather-Related Delays

NASA said teams ran into issues with hydrogen leaks while filling the rocket, a problem that has affected previous Artemis missions. As a result, officials decided additional time was needed to review data and conduct a second rehearsal before committing to a launch date.

With more than three years between SLS launches, we fully anticipated encountering challenges,” NASA Administrator Jared Isaacman said in a social media post. “That is precisely why we conduct a wet dress rehearsal. These tests are designed to surface issues before flight and set up launch day with the highest probability of success.