NASA Ends 378-Day CHAPEA Mars Simulation, Gathering Data for Moon and Mars Missions
Updated
Updated · NASA · Nov 9
NASA Ends 378-Day CHAPEA Mars Simulation, Gathering Data for Moon and Mars Missions
3 articles · Updated · NASA · Nov 9
Summary
Four volunteers exited NASA’s Mars Dune Alpha habitat on Oct. 31 after 378 days in isolation, completing CHAPEA Mission 2 at Johnson Space Center in Houston.
The crew worked under Mars-like constraints — including up to 22-minute one-way communication delays, limited supplies and no real-time family contact — while conducting simulated Marswalks, robotics, maintenance, exercise and crop-growing.
NASA said the mission produced health and performance data on how crews manage stamina, teamwork, food and water use, equipment issues and behavioral health during a yearlong surface stay.
Two weeks of post-mission evaluations and debriefs will now help researchers interpret the results and weigh risks against resources such as crew time, communications capacity and life-support design.
The study follows CHAPEA’s first mission, which ended in July 2024, and feeds into NASA planning for a lunar south-pole base and eventual human missions to Mars.