Artemis III is planned to be the first crewed Moon landing mission of the Artemis program and the first crewed flight of the Starship HLS lander.[6] Artemis III is planned to be the second crewed Artemis mission and the first American crewed lunar landing since Apollo 17 in December 1972.[7] In December 2023, the Government Accountability Office reported that the mission is not likely to occur before 2027;[8] as of January 2024, NASA officially expects Artemis III to launch no earlier than September 2026 due to issues with the valves in Orion's life support system.[4][9]
In August 2023, due to delays in the development of Starship, NASA officials expressed an openness to flying Artemis III without a crewed landing.[10][11] In this case, the mission may become a crewed visit to the Lunar Gateway.[12] In April 2024, it was reported that alternative mission options being internally evaluated by NASA include a test of docking between Orion and Starship HLS in low Earth orbit.[13]