 an ecological, a climate-saving message without hitting people on the head. That was his life, and that was the legacy that he leaves. Jeanne Wolfe. Now, have you ever wondered what it'd be like to live on Mars? Well, four volunteers in Texas might just be able to give you a few hints. They've just emerged after a whole year from a 158-square-meter room in Texas designed to simulate the surface of the Red Planet.