00:00Four people are about to walk out of a simulated Mars habitat after 378 days inside.
00:05Their year in isolation is helping NASA prepare for real crews on the Red Planet.
00:10The crew entered the habitat at Johnson Space Center in Houston on October 19, 2025.
00:16They are scheduled to exit on October 31, in a ceremony that will be live-streamed.
00:21The habitat is a 1,700-square-foot space, built with a 3-D printer.
00:26Inside, the crew grew crops, managed limited supplies, and conducted simulated spacewalks.
00:33They contacted their families only by email, with a Mars-like communication delay.
00:37On a real mission, messages could take up to 20 minutes each way.
00:41Mars lies about 140 million miles from Earth.
00:45After exiting, the crew faces two weeks of medical checks and debriefs.
00:49NASA plans to send humans to Mars as early as the 2030s.
00:53For this crew, 378 days on simulated Mars and on October 31.
00:58Disclosure, this video contains stock footage and content created or enhanced using AI-assisted tools.
