Japan's Martian moon sample-return mission, known as MMX, aims to resolve a long-standing scientific debate about the origins of Phobos and Deimos, Mars' two moons. The competing theories have divided researchers for decades regarding how these celestial bodies formed.
The mission would achieve a historic milestone by becoming the first spacecraft to return to Earth with samples collected from orbit around Mars. This accomplishment would represent a significant advancement in planetary exploration and sample-return missions.
By collecting and analyzing material from the Martian moons, scientists expect to gather evidence that could definitively answer questions about Phobos and Deimos' formation. The samples would provide direct physical evidence to test the prevailing theories about these moons' origins, potentially resolving the scientific disagreement that has persisted among researchers studying the Mars system.