Artemis II: The First Crewed Artemis Mission
Artemis II launched on April 1, 2026, carrying four astronauts around the Moon and back — the first time humans traveled to lunar distance since the final Apollo mission more than five decades earlier, and the first time a crew flew aboard Orion.
The Mission
Artemis II launched aboard NASA's Space Launch System rocket from Kennedy Space Center in Florida. The mission lasted approximately nine days, sending Orion and its crew on a lunar flyby before returning safely to Earth.
The Crew
Four astronauts flew aboard Orion: NASA's Reid Wiseman, Victor Glover, and Christina Koch, along with Jeremy Hansen of the Canadian Space Agency — a genuinely international crewed flight, not a U.S.-only mission with token international involvement.
A Lunar Flyby, Not a Landing
Artemis II was not a lunar landing mission. Instead, Orion performed a lunar flyby, using the Moon's gravity and the spacecraft's own propulsion as part of its return journey to Earth — letting NASA test real, crewed deep-space operations without also adding the complexity of a landing on the same flight.
The First Crewed Orion Flight
This was the first time astronauts flew aboard Orion at all. The crew tested the spacecraft's systems in the real deep-space environment — life support, navigation, communications, and crew operations — exactly the real, human-in-the-loop variable that Artemis I's uncrewed flight could never fully substitute for.
Why This Mission Depended Directly on Artemis I
Every major system this crew relied on — the heat shield, navigation, communications — had already been flight-tested uncrewed during Artemis I. That earlier, uncrewed validation is specifically what allowed Artemis II to fly a crew on the same basic hardware rather than needing another uncrewed test first. See Artemis I for exactly what was validated beforehand.
Why Artemis II Matters
Artemis II transformed Orion from an uncrewed test vehicle into a proven crewed spacecraft, and demonstrated that the SLS/Orion combination could carry humans beyond low-Earth orbit. It's the real bridge between Artemis I's uncrewed proof and the increasingly complex missions that follow.
What Comes Next
NASA revised its Artemis sequence in 2026 to add an additional step before attempting a crewed lunar landing. See Artemis III for what that next mission is now planned to involve, and why it looks different from earlier descriptions of the Artemis sequence.