Answer: To simulate year-long stays on the surface of Mars
Notes: NASA's CHAPEA project simulates year-long Mars missions to assess food systems and human health. After a year in the 1,700 sq ft Mars Dune Alpha habitat at Johnson Space Center, a crew emerged. CHAPEA missions involve four crew members living in a 3D-printed structure that mimics a realistic Mars habitat. The data collected will aid future space missions, focusing on physical and behavioral health patterns.
