Since 2001, planners at NASA’s Extreme Environment Mission Operations (NEEMO) program have been sending people to live in Aquarius, an underwater laboratory three and a half miles south of Key Largo, Florida. Last month, during NEEMO’s 16th mission, three astronauts lived there for 12 days, testing strategies for future asteroid expeditions, evaluating the best spacewalking techniques, and planning how to sample rocks and soil.
via Popular Science
Image: NASA
