The upper stage for NASA’s SLS (Space Launch System) Moon rocket that will power the agency’s Artemis II mission and send astronauts around the Moon is shown inside the Multi-Payload Processing Facility at NASA’s Kennedy Space Center in Florida on Monday, March 10, 2025, after being transported from United Launch Alliance’s Delta Operations Center at nearby Cape Canaveral Space Force Station. The interim cryogenic propulsion stage is a liquid oxygen and liquid hydrogen-based system that will fire its RL10 engine to give the Orion spacecraft the big in-space push needed to fly around the Moon and back.