Overview
- A multi-hour wet dress rehearsal filled the SLS tanks but was halted automatically about five minutes before T‑0 after liquid hydrogen leak rates rose.
- Engineers reported repeated fueling interruptions tied to the hydrogen system, plus a valve adjustment, intermittent ground audio failures, and cameras affected by cold conditions.
- Teams are analyzing data, troubleshooting leak sources, and applying techniques used after Artemis I, with March as the earliest window and additional opportunities in April.
- The four-person crew—Christina Koch, Victor Glover, Reid Wiseman, and Jeremy Hansen—has been released from quarantine and will return to isolation roughly two weeks before the next attempt.
- Artemis II is planned as a roughly 10‑day lunar flyby to test Orion’s life-support and other systems, representing the first crewed trip toward the Moon since 1972.