NASA unveils 'Mars' habitat.

Four small rooms, a gym and a lot of red sand -- NASA unveils its new Mars-simulation habitat, in which volunteers will live for a year at a time to test what life will be like on future missions to Earth's neighborhttps://t.co/0810rLsrWD pic.twitter.com/DnkQhWR3nQ

— AFP News Agency (@AFP) April 12, 2023