Martian Moon eXplorer (MMX)
Mitsubishi Heavy Industries's H3-24 is set to launch Martian Moon eXplorer (MMX) no earlier than October 2026 from Yoshinobu Launch Complex LP-2, Tanegashima Space Center, Japan. The countdown above is shown in your local timezone; the status updates live as the flight moves from To Be Confirmed to Go, and if it slips or scrubs. MMX is a Japanese scientific mission to land on Phobos, one of the two moons of Mars, to collect samples before bringing them back to Earth. The mission includes a small French/German rover to explore the surface of Phobos.
See it in person — plan a viewing trip
Watching from Tanegashima Space Center, Japan? Here's how to make the trip — book a room, grab a viewing tour, and bring something to see liftoff up close.
Gear that makes liftoff and stage separation worth the trip:
Full in-person viewing guide → · Is this launch visible from your location? →
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Where to watch Martian Moon eXplorer (MMX)
Mitsubishi Heavy Industries carries the official webcast on its own channel. When the stream link is published we surface it here, and embed the player on launch day. For the full rundown of where every provider streams — and how to catch it in your timezone — see how to watch a rocket launch live. New to the jargon? The launch glossary explains scrub, hold, MECO and the rest.