JAXA launches MMX mission to collect samples from Phobos

JAXA MMX mission Phobos H3 rocket Mars moon exploration

The Japan Aerospace Exploration Agency (JAXA) successfully launched the Martian Moons eXploration (MMX) spacecraft aboard an H3 rocket from the Tanegashima Space Center on October 20, 2026. The mission aims to land on Phobos, one of Mars’ moons, to collect at least 10 grams of material and return it to Earth by 2031.

The 4,480-kilogram probe is expected to reach Mars in August 2027. The mission includes a French-German rover, the Idefix, which will examine the surface before the spacecraft performs sampling. Scientists hope the collected grains will reveal whether Phobos and Deimos originated as captured asteroids or as debris from a massive impact on Mars.

The $578 million international mission is supported by several space agencies, including NASA, the European Space Agency (ESA), CNES (France), and DLR (Germany). Approximately 68 percent of the spacecraft's total weight consists of propellant to facilitate the complex landing and return maneuvers required by the low gravity of Phobos.

Entities

European Space Agency · JAXA · MMX · Mars · NASA · Phobos · Tanegashima Space Center

Claims

What the coverage asserts, and how many sources carry each claim.

[● 2 SOURCES] The MMX spacecraft weighs 4,480 kilograms. www.theasianaffairs.com · soranews24.com
[● 2 SOURCES] The mission intends to collect at least 10 grams of material. www.theasianaffairs.com · soranews24.com
[DISPUTED] The MMX spacecraft launched on October 20, 2026, aboard an H3 rocket. www.theasianaffairs.com · news.cube-soft.jp · soranews24.com
[● 2 SOURCES] The mission uses technology inherited from the Hayabusa and Hayabusa2 missions. news.cube-soft.jp · soranews24.com
[○ 1 SOURCE] The spacecraft requires a landing precision within 10 meters of the target. news.cube-soft.jp
[○ 1 SOURCE] Approximately 68 percent of the spacecraft's total weight is propellant. soranews24.com
[● 8 SOURCES] The mission aims to return samples from Phobos to Earth in 2031. www.theasianaffairs.com · news.cube-soft.jp · soranews24.com · www.europesays.com · asiesnuestravida.com.ar · +3 more
[● 3 SOURCES] The spacecraft is expected to reach Mars in August 2027. www.theasianaffairs.com · asiesnuestravida.com.ar · okdiario.com
[● 2 SOURCES] The total mission budget is $578 million. asiesnuestravida.com.ar · lu32.com.ar
[● 2 SOURCES] NASA is providing $87 million for the mission. asiesnuestravida.com.ar · lu32.com.ar
[● 8 SOURCES] JAXA successfully launched the MMX unmanned probe using an H3 rocket. asiesnuestravida.com.ar · lu32.com.ar · okdiario.com · www.europesays.com · www.theasianaffairs.com · +3 more
[● 2 SOURCES] JAXA is contributing $350 million to the mission. asiesnuestravida.com.ar · lu32.com.ar