A Japanese spacecraft embarked on a mission to Mars to explore its enigmatic moons and collect samples. This ambitious endeavor, a collaboration involving five global space agencies, aims to land a robotic prospector and a rover on Phobos, one of Mars’s small moons. Launched by the Japan Aerospace Exploration Agency from Tanegashima Island, the spacecraft successfully separated from the rocket’s upper stage, marking a significant milestone.
While previous missions have landed on Mars, no spacecraft has ever landed on Phobos or its companion moon, Deimos, nor retrieved samples from Mars or its moons. If successful, samples containing dust, soil, and rocks from Phobos are expected to reach Earth in 2031.
The mission, named Martian Moons Exploration (MMX), involves a substantial five-ton spacecraft that is set to reach Mars by the end of next summer. The spacecraft will align with Phobos’s orbit around Mars and deploy a French-German rover named Idefix on the moon’s surface. Idefix, no larger than a microwave oven, will autonomously land on Phobos, using its four wheels to navigate the moon’s low-gravity environment.
The rover’s primary role is to assess the terrain for the safe descent of a stationary lander that will collect samples from Phobos in late 2028 or 2029. The lander is designed to operate for two hours, gathering at least 10 grams of material before departing for Earth. The mission also includes flybys of Deimos before returning to Earth for a sample delivery in 2031.
Scientists hope that studying Mars’s moons will provide insights into their formation and shed light on the possibility of life on Mars. By analyzing the samples from Phobos, researchers aim to unravel the mysteries of planetary and moon formation, potentially offering clues about the origins of life.
The mission, funded by Japan and supported by various international space agencies, represents a significant step in space exploration and could pave the way for future missions to Mars. Japan’s investment in the mission, along with contributions from NASA, the French Space Agency, the German Space Agency, and the European Space Agency, underscores the collaborative effort to unlock the scientific treasures hidden within the Martian system’s rocks and soil.