Want to go to space? First, you must live in this dome for 2 years.
In 1991, four men and four women sealed the hatch on a 3.15-acre ecological ark located an hour north of Tucson, Arizona. They called the structure Biosphere 2 (Biosphere 1 being planet Earth, itself). Their scientific mission: to live inside their artificial ecosystem, removed from the rest of the world, for 24 months. “I don’t…