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