NASA’s second CHAPEA ground-analog mission began on October 19, 2025, with four research volunteers living and working in a simulated Mars habitat at Johnson Space Center. The ongoing study examines health and performance under isolation, resource limits, communication delays and simulated surface tasks. NASA scheduled the stay through October 31, 2026; that planned date is not an actual completion date.
Schedule, status, and mission updates. Time-based alerts will start when a time is available.