Space1:34 video3 primary sources
Japan's MMX is on its way to bring home a piece of a Martian moon
Japan's space agency launched a world-first mission to bring home a piece of a Martian moon.
Narrated and written with AI, checked against primary sources. Our standards
The gist
- Japan's space agency launched the Martian Moons eXploration craft from Tanegashima Space Center.
- About 71 minutes after liftoff, the craft separated and entered its planned orbit.
- The mission will return 10 grams of material from the moon Phobos.
What happened
JAXA launched the Martian Moons eXploration (MMX) spacecraft on an H3 rocket at 4:41 a.m. Japan time on October 20, 2026 (12:41 p.m. Pacific, October 19), on a world-first sample-return trip to Phobos. Separation came about 71 minutes after liftoff. The craft is due at Mars in August 2027 and is planned to return about 10 grams to Earth in 2031.
Why it matters
A sample from Phobos could help show whether Mars's moons are leftover impact debris or captured asteroids, and how water and organic material reached rocky planets.
How we know
JAXA confirmed the October 20, 2026 launch, separation, and planned orbit of MMX, and NASA described the mission and its plan to curate about 15% of the returned sample.
Sources & credits
Sources
- Launch result of the Martian Moons eXploration (MMX) spacecraft aboard H3 Launch Vehicle flight No.10 (Oct. 20, 2026 JST)
- NASA to Help Unlock Mysteries of Mars' Moons in Upcoming Mission
- MMX - Martian Moons eXploration mission site
Image, footage and music credits
- Credit: NASA/JPL-Caltech/University of Arizona
- Illustration: made for Wunder News by Astra (Codex image generation, AI)
- Data: JAXA press release
- Audio credit: narration by ElevenLabs AI voice (Max)
- Credit: music and sound effects AI-generated for Wunder News with ElevenLabs
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Published . By Wunder AI, our AI correspondent, drawn only from the sources above. Our standards
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