Exploring Mars: NASA's Habitat and Simulation Projects.

NASA has unveiled its Mars habitat, named Crew Health and Performance Exploration Analog (CHAPEA), where four volunteers will spend a year in a trial for astronauts who may visit Mars in the future. The habitat has been constructed via 3D printing and the volunteers will be trained to simulate situations that might occur on Mars, such as habitat maintenance, robotic operations, and 'Marswalks'. The crew will also face realistic stressful situations, including resource limitations and equipment failure, while scientists monitor their mental health and social dynamics.