Japan’s audacious sample-return mission to the Mars moon Phobos has made it to the launch pad The complex MMX mission aims to shed light on the origins of Mars' two tiny moons, Phobos and Deimos, bringing Phobos material back to Earth in 2031. Astrobitica April 23, 2026 (Last updated: April 23, 2026) 1 minute read The complex MMX mission aims to shed light on the origins of Mars’ two tiny moons, Phobos and Deimos, bringing Phobos material back to Earth in 2031. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Our recommended choice as the best beginner mirrorless camera has $400 off, and has just hit its best price of the year at Best BuyNext: Nebula sparkles in new Hubble snapshot | Space photo of the day for April 23, 2026