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

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 11:00am 7/19/12 11:00am

Searching for the Ocean's Secrets From the Last Undersea Base

Two days ago, in the ocean a few miles off Key Largo Florida, I watched a woman dive 20 feet down to a sandy bottom. Conch skittered across sea floor while fish pecked at a nearby reef. A Barracuda snuck up behind me and glittered as it passed by. Then, an odd thing happened. The woman on the sea floor stopped… » 7/13/12 2:00pm 7/13/12 2:00pm