Artemis is NASA's program for sustained human exploration of the Moon and preparation for crewed journeys to Mars. It brings together the Space Launch System, Orion spacecraft, Exploration Ground Systems, commercial human landing systems, and surface exploration capabilities. The program has completed the uncrewed Artemis I flight test and the crewed Artemis II lunar flyby. Its next steps include testing Orion and human-lander rendezvous and docking in Earth orbit, followed by crewed lunar surface expeditions.