NASA is gearing up for the second Artemis 2 rocket fueling test today, aiming to prevent more hydrogen leaks. The test is a critical step in the Artemis program's mission to return humans to the moon. The fueling process, known as a Wet Dress Rehearsal (WDR), involves a series of complex procedures and is being livestreamed for the public to witness. The WDR is designed to simulate the conditions of a real launch, ensuring that all equipment, personnel, and procedures are in place for the upcoming mission. The Artemis 2 mission will carry astronauts Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen on a 10-day journey around the moon and back to Earth, marking the first crewed lunar voyage since the Apollo missions in 1972. The test is being closely monitored by engineers at the Kennedy Space Center, with a focus on the tail service mast, a critical component that has experienced leaks in previous missions. NASA is confident that lessons learned from the Artemis 1 mission have led to hardware modifications and improved procedures, reducing the risk of similar leaks during the fueling process. The successful completion of the WDR could set the stage for an early March 6 launch, but NASA officials are awaiting further data review before finalizing the target date. The fueling operations, including vehicle stage cool-downs, are scheduled to last from 9:50 a.m. EST (1450 GMT) until 3:30 p.m. EST (2030 GMT), with a planned countdown hold as the LH2 and LOX lines enter a replenishing phase. The WDR timeline includes a series of countdown milestones, such as the 'go/no-go' poll, the 'slow fill' of LH2, and the 'fast fill' of LOX, all leading up to the final countdown and launch.
