NASA is preparing to lock four people inside a simulated Martian outpost for more than a year. Yes, you heard that correctly. This is a very bold step that aims to mimic the challenges astronauts might face on the Red Planet. The crew will consist of two military officers and two civilians who will need to learn to navigate daily life inside Mars Dune Alpha, a 1,700-square-foot habitat located at Johnson Space Center in Houston. Perhaps surprisingly, leading the mission isn’t an astronaut with space travel experience, but an Air Force test pilot, chosen for his unique blend of technical expertise and familiarity with high-stress scenarios.
The experiment is part of NASA’s Crew Health and Performance Exploration Analog (CHAPEA) program. These volunteers will be stranded in a controlled environment designed to simulate isolation, limited resources, and the operational stresses of a manned Mars mission. They will spend 378 days inside the habitat, completely cut off from the outside world and dealing with delayed communications, resource limitations, and occasional simulated emergencies. This particular simulated Mars mission starts on October 19, 2025, and it will stretch until October 26, 2026, providing NASA with valuable info on how to prepare astronauts for extended stays on the moon and Mars.
This Air Force pilot has a very unique set of skills
When the time came to select a commander for a one-year-long CHAPEA mission, NASA turned to someone with the kind of experience forged in high-stakes environments. Major Ross Elder, a U.S. Air Force experimental test pilot, brings a unique blend of technical expertise, operational discipline, and leadership experience that makes him a natural fit for the role. He has more than 1,800 flight hours, including over 200 hours in combat. Elder is accustomed to making decisions under pressure. He has the traits and the composure NASA wants in a confined, high-stress mission that simulates what life would be like on Mars.
Elder also has an engineering background, which adds another layer to what he brings to the table. He was trained in both astronautical and mechanical engineering, and he worked extensively in flight testing. His career was focused on advanced mission systems, autonomy, and crewed-uncrewed teaming. Those skills are all relevant to CHAPEA as the crew will have to troubleshoot systems, manage resources, and work through simulated hardware challenges, all without outside help.
His leadership experience is equally important. Military test pilots are trained to lead small teams, follow strict protocols, and maintain safety standards while pushing the boundaries of technology. In short, Major Ross Elder possesses all the qualities essential for guiding a four-person crew through 378 days of isolation. He embodies steadiness, technical insight, and operational grit that NASA is looking for in a mission commander, especially as they plan their ambitious missions to Mars.
Inside NASA’s Mars simulation
The CHAPEA mission is designed to replicate what life might be like when astronauts potentially settle down in the perfect spot for a Mars home base. To create such a simulation, NASA built the Mars Dune Alpha habitat. It’s a 3D printed, 1,700-square-foot box tucked away inside the Johnson Space Center. It’s a simulated representation of a world far from home, and the crew that will inhabit it for 378 days needs to treat it as a space where they’ll live, work, and socialize, with no opportunity to step outside. It contains private quarters for the crew members, workstations, a medical facility, and even a simulated “outdoor” area for crewmembers to mimic spacewalks on the Martian surface. Communication with the outside world will be deliberately delayed to replicate the 20-minute lag between Earth and Mars, and supplies would need to be rationed to reflect the limited resources of an interplanetary mission.
NASA’s Mars simulation isn’t just a test of hardware, however; it’s a test of people. NASA needs to understand how isolation, stress, and resource scarcity affect teamwork, decision-making, and the health of potential Mars crewmembers. Researchers will track everything from nutrition and physical performance of the crew, to their psychological resilience over the time of their isolation. Ultimately, CHAPEA isn’t just about pretending to live on Mars; it’s about preparing everyone for the real thing. NASA wants to understand how crews will respond to the unique challenges of surviving on another planet, before humans ever set foot on Mars. The agency can identify any risks and learn how to adjust by simulating those conditions while still on Earth. This will ensure that, when the time comes, astronauts are ready not only to go to exciting new worlds, but also to stay there.
