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Scientists reemerge after year 'on Mars'

(UPDATE) WASHINGTON — The NASA astronaut knocks loudly three times on what appears to be a nondescript door and calls cheerfully: 'You ready to come out?'

The reply is inaudible, but beneath his mask, he appears to be grinning as he yanks the door open — and four scientists who have spent a year away from all other human contact, simulating a mission to Mars, spill out to cheers and applause.

In this image taken from a July 6, 2024, NASA TV broadcast, volunteer crew commander Kelly Haston speaks alongside crewmates (L-R) Ross Brockwell, Nathan Jones and Anca Selariu, as they exit the first simulated yearlong Mars habitat mission at Johnson Space Center in Houston, Texas. The crew's mission began in the 3D printed Mars habitat on June 25, 2023. AFP