NASA moves forward with Artemis II tanking test that could set up moonshot mission

NASA is advancing its preparations for the Artemis II mission, which aims to be the first crewed mission to the Moon in nearly 50 years. The agency is set to begin fueling the Space Launch System (SLS) rocket with 700,000 gallons of cryogenic propellant at the Kennedy Space Center. This fueling test is part of a countdown rehearsal for the mission, which has been targeted for a launch as soon as March 6, following a successful wet dress rehearsal that took place recently. NASA Administrator Jared Isaacman noted that the test marked significant progress, especially after previous issues with hydrogen leaks during earlier countdown rehearsals. However, the timeline for the Artemis II launch has been complicated by technical issues. NASA encountered a problem with the flow of helium to the SLS rocket's upper stage, which has necessitated rolling the rocket back to the Vehicle Assembly Building (VAB) for troubleshooting. This rollback is expected to eliminate the possibility of a March launch window, as confirmed by Isaacman. NASA has indicated that it is now aiming to preserve the April launch window, contingent on the outcomes of ongoing data analysis and repair efforts. The agency has faced challenges in its preparations, including a previous attempt to conduct a countdown rehearsal that was disrupted by hydrogen leaks. Despite these setbacks, NASA has made strides in its testing, successfully completing two runs of the terminal count during the latest rehearsal. The agency is committed to addressing the current issues and will provide updates on the situation in an upcoming media briefing.