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Artemis I Success
Uncrewed Orion spacecraft completes 25-day mission around the Moon.
Target Launch
Scheduled liftoff for the first crewed lunar mission in over 50 years.
Final Integration
Orion spacecraft and SLS rocket undergo final stacking and testing at KSC.
Crew Announcement
NASA and CSA name the four astronauts assigned to the Artemis II mission.
Projected Launch
Estimated new window for the Artemis II crewed mission.
Helium Issue Identified
Engineers detect flow malfunctions during final testing phases.
Initial Delay
NASA officially delays Artemis II to September 2025 due to safety concerns.
Artemis I Launch
Successful uncrewed flight of SLS and Orion around the Moon.
NASA is preparing to announce a further delay for the Artemis II crewed lunar flyby mission following the discovery of a helium flow malfunction at Kennedy Space Center. The technical setback threatens the 2026 launch window and creates a cascading effect on the broader Artemis lunar exploration timeline.
NASA has officially targeted March 6 for the launch of Artemis II, the first crewed mission of the Artemis program. The mission will carry four astronauts on a high-speed lunar flyby, marking the first human voyage to the vicinity of the Moon in over half a century.