NASA is preparing for its second year-long Mars analog mission inside the 1,700-square-foot 3D-printed CHAPEA habitat at the Johnson Space Center in Houston, Texas.

A crew of four will live isolated from loved ones, carrying out daily routines, exercises, and job duties that simulate life on Mars, as part of NASA’s broader goal of reaching the Red Planet in the 2030s.

Suzanne Bell, Behavioral Health and Performance Research Co-Investigator for CHAPEA, explained that lessons from the first mission in July 2024 are being applied to better understand how crews interact and problem-solve in confined and challenging conditions.

She highlighted the 45-minute communication delay with Earth, which forces the crew to rely on self-reliance and teamwork.

“When they don't have that gravity, it affects a lot of musculoskeletal systems,” Gardner said. “So, bone, muscle, and we want them to be as healthy as possible.”

NASA Human Performance Scientist Dana Gardner noted that maintaining aerobic and cardiovascular fitness is crucial to counteract the musculoskeletal effects of low gravity on bone and muscle health.

NASA plans to announce the new CHAPEA crew in September, selecting individuals with astronaut-like skills and backgrounds to participate in the mission.

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