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Japan targets October 20 launch for Mars-moon sample mission

In one minute

JAXA's MMX spacecraft is scheduled to launch toward Mars to study its moons and attempt the first sample return from Phobos.

Key takeaways

JAXA's MMX spacecraft is scheduled to launch toward Mars to study its moons and attempt the first sample return from Phobos.

What happened

The Japan Aerospace Exploration Agency has confirmed launch preparations for its Martian Moons eXploration mission. The European Space Agency lists an October 20 Japanese-time launch target on an H3 rocket, while NASA describes its instrument contribution. A planned launch is not a completed launch, and weather or technical checks may change the schedule.

Why it matters

A successful mission could return material that helps scientists investigate how Mars's moons formed.

What to watch

Check JAXA's launch status and later mission milestones; landing and sample return are long-term goals, not guaranteed outcomes.

Sources

Sources

  1. https://www.jaxa.jp/press/2026/10/20261018-1_j.html
  2. https://www.esa.int/Science_Exploration/Space_Science/Mars_moon_lander_set_to_launch_on_19_October
  3. https://science.nasa.gov/mission/mmx/

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