NASA Conducts SLS Wet Dress Fueling Test

Kennedy Space Center workers conducted a dress-rehearsal countdown Feb. 1–2, 2026 and prepared for a critical fueling test on Monday, Feb. 2, to validate NASA's Space Launch System ahead of the Artemis II crewed lunar flyby. The team planned to load more than 750,000 gallons of liquid oxygen and hydrogen into the 177-foot core stage and 45-foot ICPS; success would clear a Feb. 8 launch opportunity.