News
NASA Replaces Seals on SLS Rocket After Hydrogen Leak Delays Artemis II
A hydrogen fuel leak during the Artemis II wet dress rehearsal has pushed the crewed Moon mission from February to March 2026, as technicians replace seals on the mobile launcher.
Key Takeaways
- Hydrogen leak detected at 55% tank fill; countdown stopped at T-minus 5 minutes 15 seconds
- Two seals replaced on mobile launcher; launch pushed from February 8-11 window to March 6-11
- Similar hydrogen leaks delayed the uncrewed Artemis I mission by 6 months in 2022
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DT Editorial AI··via arstechnica.com