How NASA Uses the Ocean to Train Astronauts for its Most Dangerous Missions

The astronauts are wearing white suits with American flags and mission patches on them. They're aware but unworried about the hostile environment inches away from their noses. They'd be dead in seconds if it were not for their air supply. As they bound nimbly along in a state of near-weightlessness, all each… »7/19/12 11:00am7/19/12 11:00am

There Is No Such Thing as Normal When You Live at the Bottom of the Sea

The Aquanauts had killed the power and strapped on their emergency air masks. Someone smelled burning. In a rich-oxygen environment like Aquarius, fires can spread with ferocity; any hint of combustion is taken with utter seriousness. The air wasn't circulating as it was supposed to, and, up above, the life support… »7/18/12 5:00pm7/18/12 5:00pm