On August 28, six researchers who barely know each other made their way to the slopes of the Mauna Loa volcano on Hawaii's Big Island for a year-long "vacation." However, the crew of three men and three women that includes a soil scientist, a doctor, a post-grad architect student, and an astrobiologist, did not check into a fancy resort. Instead, they locked themselves up inside a solar-powered dome without fresh air, fresh food, or privacy.