JAXA Aims for Mars Moon Samples in Solar System Quest

The Japan Aerospace Exploration Agency (JAXA) successfully launched its H3 rocket carrying the unmanned Martian Moons eXploration (MMX) probe on Tuesday. This ambitious mission aims to be the first to retrieve samples from one of Mars's moons, Phobos, and return them to Earth.

The MMX probe is expected to reach the vicinity of Mars around August of next year. Once there, it will orbit Phobos for approximately three years, during which time it will land on the moon's surface to collect at least 10 grams of material. This endeavor is a key step in understanding the formation of Mars and its moons, offering insights into the birth of the Solar System.

This pioneering mission is a collaborative effort involving US and European space agencies, alongside numerous universities and tech companies. Beyond scientific discovery, MMX also aims to explore the feasibility of using Phobos as a potential staging point for future human exploration of Mars. The probe will also observe Mars's other moon, Deimos.

While JAXA's mission seeks to return samples from a Martian moon, other space agencies are also pursuing Mars sample return. NASA's Perseverance rover has collected samples, though its return mission faced cancellation. China's Tianwen-3 is slated for launch around 2028 with a target return date of 2031, potentially predating the Japanese mission's return.