Japan Launches Ambitious H3 Mission to Retrieve Soil Samples from Mars’ Moons
Japan's JAXA launches an H3 rocket on a historic mission to explore Phobos and Deimos, aiming to return Martian moon soil samples to Earth by 2031.
POLICY WIRE — Tanegashima, Japan — A Japanese spacecraft successfully launched on Tuesday, embarking on a groundbreaking mission to explore the mysterious moons of Mars and return physical samples to Earth. The H3 rocket lifted off from the Tanegashima Space Center, with officials confirming the craft separated from the upper stage as planned shortly after departure.
The $578 million project, known as Martian Moons Exploration (MMX), represents a collaborative effort involving five international space agencies. The mission aims to land a robotic prospector and a specialized rover on Phobos, the larger of the two Martian moons, to collect dust and soil. If the mission proceeds as scheduled, these extraterrestrial samples are expected to arrive on Earth in 2031.
While previous missions have touched down on the surface of Mars, no agency has ever successfully retrieved samples from the Martian system or landed on its moons. The mission will utilize a French-German rover named Idefix, which will navigate the low-gravity environment of Phobos to scout for safe landing zones for the primary spacecraft. Scientists hope the collected material will provide definitive answers regarding whether the moons formed from ancient planetary collisions or were captured asteroids.
Reporting by Policy-Wire (PW)





