The Japan Aerospace Exploration Agency (JAXA) will launch the MMX (Martian Moons eXploration) spacecraft onboard the H3 Launch Vehicle No. 10 as outlined below:

• Scheduled Launch Date: October 20, 2026 (Tuesday)

• Scheduled Launch Time: 04:41:03 (※1, ※2)

• Launch Window Backup Period:
  October 21, 2026 (Wednesday) to November 7, 2026 (Saturday)

• Launch Site:
  Yoshinobu Launch Complex at the JAXA Tanegashima Space Center
  

(※1) Japan Standard Time (JST), 24-hour format.
(※2) During the backup launch period, the launch time will be decided separately for each launch date.

Launch Poster for the MMX Mission

• Press Release: Launch of the MMX (Martian Moons eXploration) spacecraft onboard the H3 Launch Vehicle No. 10
• Special Website: MMX (Martian Moons eXploration) spacecraft and H3 Launch Vehicle No. 10 launch site (Japanese site)