NASA’s second yearlong stay on “Mars” comes to an end today. The NASA CHAPEA Mars simulation concludes Saturday, October 31, when four volunteer crew members walk out of the 3D-printed Mars Dune Alpha habitat at Johnson Space Center in Houston at 3 p.m. EDT — 378 days after they entered.
The CHAPEA Mission 2 crew — Commander Ross Elder, Medical Officer Ellen Ellis, Science Officer Matthew Montgomery and Flight Engineer James Spicer — began their isolation on October 19, 2025. Inside the 1,700-square-foot habitat, the crew simulated life on the Red Planet: spacewalks dubbed “Marswalks,” growing crops, stretching limited supplies and living with Mars-like communication delays between the crew and mission control.
CHAPEA — short for Crew Health and Performance Exploration Analog — is not a trip to Mars. It is an Earth-based study of how humans cope with long-duration confinement, designed to shape planning for crewed Moon missions under Artemis and eventual voyages deeper into the solar system. NASA expects to use the crew’s health and performance data to refine nutrition, behavioral support and operational plans for long stays off Earth.
The first CHAPEA mission ran from June 2023 to July 2024, also lasting 378 days. Remarks at the exit ceremony are expected from Johnson Center Director Vanessa Wyche and astronaut Jack Hathaway, with live coverage on NASA Johnson’s YouTube and social channels. The crew will then spend two weeks on post-mission medical evaluations and debriefings before returning to normal life.
No mission results have been released yet — NASA has kept the science locked away for analysis. But after 378 days inside a building designed to feel like another planet, the crew’s re-entry into a real Halloween weekend may be the most disorienting walk of all.
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Bhudev Bhagaliya is an experienced and senior journalist who has carved a distinct niche for himself in the world of Hindi journalism through his profound understanding and precise writing style. With over two decades of experience in the field of journalism, he has held key responsibilities at Dainik Hindustan for 12 years and at Amar Ujala for one year. Currently, he serves as the Content Editor for the Jagrook Youth News newspaper and portal, where he plays a crucial role in ensuring the quality and credibility of the news content. Bhudev Bhagaliya consistently writes about issues that help raise awareness within society and among the younger generation.