Science TechnologyMonday, 19 October 2026·The Hindu - Science
Japan’s MMX mission to Phobos: first sample-return attempt from a Martian moon
Japan will launch MMX on October 20, 2026 to collect samples from Phobos, marking the first mission to return material from a Martian moon.
Key highlights
Direct fact
On October 20, 2026, the Japan Aerospace Exploration Agency (JAXA) is set to launch the MMX spacecraft on an H-3 rocket for a five-year mission to collect and return samples from Phobos, one of Mars’s two moons.
Key specifics
- MMX is the world’s first mission to bring back samples from a Martian moon.
- The mission is expected to take 5 years and return home in 2031.
- Phobos is about 20 to 30 kilometres in diameter and orbits Mars about 6,000 kilometres away.
- MMX weighs about 5 tons and has 3 modules: propulsion, exploration, and return.
- The spacecraft will carry 13 instruments, including a NASA sampling device and a French-German rover named Idefix.
Exam lens
Science and space question: remember JAXA, H-3 rocket, Phobos, 2031 return, and the 3-module MMX design. TNPSC may ask which moon is targeted, which agency leads the mission, and why sample-return missions matter for planetary science.