Four volunteers embark on mission to live inside 3D-printed Mars simulation for 378 days

Four volunteers have been selected to live together for the next year inside a special Mars habitat made by NASA. On Sunday, the scientists started their 378-day stay at a mock-Mars base in Texas. The volunteers are in a 3-D printed habitat meant to mimic a Mars mission, without any influence from the outside world. Over the next year, the crew will live like astronauts, according to NASA, conducting simulated space walks, growing crops, exercising, doing experiments, and maintenance work. The goal is to help NASA understand what it would be like for humans to live on Mars for extended periods of time.