The first dive to the deepest part of Earth's oceans had its start with a record-breaking ... They became the first human beings to enter the stratosphere, reaching a height of 15,781 meters ...

When Senior Commissioned Boatswain George Wookey of the British navy went over the side of the experimental diving ship H.M.S. Reclaim, he knew he was headed for a trying experience. The Reclaim ...

This marked the only human dive to the bottom of the Challenger Deep for decades, ... Vescovo has made the dive 15 times, with his deepest effort beating James Cameron's dive by close to 100 feet.

Free diving is a breathtaking sport, literally and figuratively, requiring athletes dive to astonishing depths (recorded primarily in meters) on a single breath of air. Instead of using scuba gear, ...

This experience alerted the navy to the problem of breathing normal air during a deep sea dive, and it started experimenting with a helium-oxygen mix. A US naval diver preparing for a dive in 1955.