Overview
- An overnight wet dress rehearsal at Kennedy Space Center was stopped about five minutes from completion after a liquid hydrogen leak at a core stage interface.
- February’s launch window has been abandoned, with the earliest opportunities under review in early March and additional dates available in April, but no date is set.
- The four-person crew—Reid Wiseman, Victor Glover, Christina Koch, and Canadian astronaut Jeremy Hansen—has been released from quarantine and will re-enter isolation roughly two weeks before the next attempt.
- Engineers also logged delayed closure operations, intermittent ground audio dropouts, and cold-related equipment issues as teams assess data, apply mitigations, and prepare to repeat the full countdown.
- The postponement affects secondary payloads such as Argentina’s Atenea CubeSat, and it underscores recurrent hydrogen leak challenges previously seen during the Artemis I campaign in 2022.