Dr. Suzanne Bell, Lead for NASA's Behavioral Health and Performance Laboratory, walks through a simulated Mars exterior portion of the CHAPEA's Mars Dune Alpha at the Johnson Space center in Houston, Texas on April 11, 2023. - CHAPEA's Mars Dune Alpha is a 3D printed habitat designed to serve as an analog for one-year missions. (Photo by Mark Felix / AFP) (Photo by MARK FELIX/AFP /AFP via Getty Images)