NASA plans a Feb. 19, 2026, wet dress rehearsal for Artemis II, a full countdown test with fueling, to prepare for the first crewed lunar flyby since 1972.

NASA is targeting February 19, 2026, for a second wet dress rehearsal of the Artemis II mission, simulating a full launch countdown and fueling with super-cold propellants. The test, beginning February 17, includes multiple terminal count runs, clock recycling, and scrub scenarios to prepare teams for launch. Engineers replaced a hydrogen system filter after flow issues during a February 12 partial fueling test. A successful rehearsal is required before NASA sets a launch date, with March 6 as the earliest possible window. The mission will carry four astronauts on a lunar flyby, marking the first crewed lunar mission since 1972. Live coverage will be provided by NASA.