What Are Mars’ Moons Really Made Of? Japan’s MMX Mission Will Find Out
What Are Mars’ Moons Really Made Of? Japan’s MMX Mission Will Find Out  
Podcast: Bedtime Astronomy
Published On: Wed Sep 02 2026
Description: Japan’s MMX mission is preparing to land on Mars’ moon Phobos, collect samples, and study Deimos to uncover whether the moons are captured asteroids or remnants of a massive impact.The mission could reveal clues about the delivery of water and organic materials to early Earth while testing technologies for future Mars exploration. With China’s Tianwen-3 pursuing a similar sample-return goal, a new race to bring Martian material back to Earth is underway.Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.This episode includes AI-generated content.