Artemis II crew members, proven contained in the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, stand in entrance of their Orion crew module on Aug. 8, 2023. From left are: Jeremy Hansen, mission specialist; Victor Glover, pilot; Reid Wiseman, commander; and Christina Hammock Koch, mission specialist. The crew module is present process acoustic testing forward of integration with the European Service Module. Artemis II is the primary crewed mission on NASA’s path to establishing a long-term lunar presence for science and exploration beneath Artemis.