NASA officially confirmed this week the launch window for Artemis II: November 14-21, 2026. It will be the first crewed mission to the Moon since Apollo 17 in December 1972 — a 54-year gap that ends in roughly 200 days.
The four-person crew — Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen — has been training together for three years for the 10-day mission, which will fly past the Moon and return to Earth without landing.
What Artemis II actually does
Artemis II is a circumlunar flyby — not a landing. The mission profile:
- **Launch**: SLS Block 1 from Kennedy LC-39B
- **Earth orbit checkout**: 25 hours validating Orion systems
- **Translunar injection**: ICPS upper stage burn for trajectory to Moon
- **Lunar flyby**: closest approach 8,000 km from far-side surface (no landing)
- **Free return trajectory**: Earth's gravity slingshots Orion home
- **Reentry and splashdown**: Pacific Ocean off San Diego, day 10
It is intentionally less ambitious than Artemis III (the actual landing mission, now scheduled for 2027). Artemis II proves Orion's life support, deep-space communications, and crew operations work in lunar conditions before risking a surface mission.
The technical state
NASA's recent flight readiness review cleared three areas that had been concerns:
- **Heat shield**: redesigned after Artemis I uncovered ablation issues; new Avcoat material spec confirmed in vacuum chamber tests
- **Life support**: ECLSS validated through 28-day full-duration test in March
- **Crew interface**: Lockheed Martin delivered the integrated Orion to KSC on April 18; rollout to pad scheduled October 1
The Space Launch System rocket — SLS — completed wet dress rehearsal on April 22, the second-to-last major milestone before launch.
Why this matters now
Artemis II is the United States declaring it can still send humans beyond low Earth orbit on its own hardware. China's Long March 10 first crewed lunar flight is targeted for 2029. Russia is out of the running for any near-term crewed deep-space program. India's Gaganyaan-2 (lunar variant) is at least 2031.
For four NASA astronauts in November, it is a high-stakes return to a capability the agency last demonstrated when their parents were children. The hardware is new. The software is new. The lessons of Apollo are 50 years old. Some institutional knowledge had to be rebuilt from scratch.
What to watch in 2026
Three milestones between now and launch:
- **June 2026**: Crew dress rehearsal at KSC (mission simulation in flight suits)
- **September 2026**: SLS rollout to pad LC-39B
- **October 2026**: Wet dress rehearsal with crew
- **November 14, 2026**: First launch window opens
If everything holds, four humans will see the Moon up close from 8,000 km away exactly 54 years after Eugene Cernan stepped off the Apollo 17 lunar surface.
Sources
- NASA Artemis II Mission Page (updated April 25, 2026)
- NASA flight readiness review summary (April 24, 2026)
- Reuters (April 25, 2026): NASA confirms Artemis II launch window for November 2026
- Spaceflight Now (April 26, 2026): SLS wet dress rehearsal complete