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Martian Moons eXploration (MMX)

MMX is JAXA's international Martian-moons sample-return mission. The Mitsubishi Electric-built spacecraft combines propulsion, exploration, and return modules to observe Phobos and Deimos, deploy the CNES/DLR IDEFIX rover, land on Phobos, collect more than 10 grams of material, and return a detachable capsule to Earth.

Martian Moons eXploration (MMX)
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Identity

Aliases
MMXMartian Moons Exploration
Name
Martian Moons eXploration (MMX)
Status
planned

Details

Astronauts
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Description
MMX is JAXA's international Martian-moons sample-return mission. The Mitsubishi Electric-built spacecraft combines propulsion, exploration, and return modules to observe Phobos and Deimos, deploy the CNES/DLR IDEFIX rover, land on Phobos, collect more than 10 grams of material, and return a detachable capsule to Earth.
Destination
Quasi-Stationary Orbit around Phobos in the Martian system for observations, sampling, and return of Phobos material to Earth
Launch Site
Outcome
Planned. The flight spacecraft was delivered to Tanegashima in March 2026 and is undergoing protoflight testing for launch on the mission-specific H3-24L vehicle in Japanese fiscal year 2026. JAXA's current plan calls for Mars-system operations in 2027-2030 and capsule recovery in Australia in fiscal year 2031.
Programs
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Vehicle Families

Links

Assets & Meta

Creation Time
April 26, 2026 at 15:34:08 UTC
Updated Time
August 22, 2026 at 08:24:03 UTC

Other

Affiliations
Space Stations
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Vehicles
Martian Moons eXploration (MMX) - AeroVia