Overview
- Administrator Jared Isaacman said teams could not establish the required helium flow in one rocket stage, prompting a return to the Vehicle Assembly Building for inspection and repair.
- NASA had completed a full wet dress rehearsal with successful tanking and a simulated countdown after an earlier test was cut short by a liquid hydrogen leak.
- Officials had targeted no earlier than March 6 with multiple evening launch windows, but March is now off the table and April opportunities remain possible though unset.
- The four-person crew—Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen—entered quarantine for a potential early‑March launch and may adjust status following the delay.
- Artemis II is a roughly 10‑day lunar flyby intended to pave the way for Artemis III, with the broader schedule still influenced by downstream elements such as lunar lander readiness.