# JAXA Launches Historic Mission to Sample Martian Moon Phobos The MMX mission aims to retrieve extraterrestrial material to unlock secrets of Mars's history. - **Source:** [Scientific American Content: Global](https://brifing.si/source/4f066134-e06d-4415-87ef-305e3dc2aba6) - **Published:** 2026-10-19 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/60e7a22f-1802-49a0-9483-400a7f7294dc ## Historic Deep Space Launch The Japan Aerospace Exploration Agency is launching the Martian Moons Exploration mission today at 3:41 P.M. EDT. This ambitious project marks the first time a spacecraft will travel to the Mars system specifically to retrieve physical samples. The craft is scheduled to reach its destination by August 2027 to begin observations. ## Scientific Objectives and Origins Researchers aim to determine whether Phobos and Deimos are captured asteroids or debris from ancient planetary impacts. By analyzing the composition of these moons, scientists hope to uncover clues about the early history of the Mars system. This data could reveal how water and organic matter were delivered to various terrestrial planets. ## Advanced Sampling Mechanisms The spacecraft carries 13 instruments, including two specialized samplers designed for surface extraction. The C-sampler acts as a corer to dig into the moon, while the P-sampler utilizes high-pressure nitrogen gas to loosen dust and rocks. These tools are essential for collecting the required 10 grams of material for return. ## International Scientific Collaboration NASA is a key partner in this mission, providing critical scientific instruments and personnel to support the effort. This collaboration is particularly significant as NASA’s own Mars Sample Return project currently faces delays. By contributing to MMX, NASA gains a proof-of-concept for retrieving Martian material while awaiting its own future mission success. ## Potential for Martian Discovery Astronomers speculate that Phobos samples might contain ejected debris from Mars itself due to past asteroid impacts. If present, these grains would represent the first pristine physical samples of the Red Planet ever returned to Earth. Scientists are eager to identify these specific grains using state-of-the-art laboratory equipment upon the mission's return. ## Japan's Niche in Space JAXA has established itself as a leader in deep-space sampling, having previously retrieved material from asteroids Itokawa and Ryugu. This expertise makes them the primary agency for complex sample-return operations. Their proven track record in navigating small bodies provides the necessary technical confidence for this challenging mission to the Martian moons. ## Future Exploration Implications The findings from this mission will complement decades of Mars exploration and inform future crewed missions. Understanding the environment around Mars is vital for long-term human presence in the region. By analyzing these samples, researchers can better prepare for the logistical and scientific challenges associated with future human exploration of the planet. ## The Value of Returned Samples Returning physical samples to Earth allows scientists to utilize advanced technology that is not yet available for space flight. This capability ensures that researchers can re-examine the material as new analytical techniques are invented. The mission represents a critical investment in planetary science, providing data that will shape our understanding for decades. ## Sources covering this story - https://www.scientificamerican.com/article/the-first-mission-to-sample-marss-moons-launches-today/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._