From left, NASA astronauts Andre Douglas, Artemis II backup crew member, and Artemis II astronaut Reid Wiseman, commander; and Artemis team members tour the twin SLS (Space Launch System) solid rocket boosters for Artemis II inside the Vehicle Assembly Building at NASA Kennedy on Thursday, Feb. 27, 2025. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.