The ocean’s depths are a hostile world of crushing pressure, freezing temperatures, and total darkness. Yet divers risk ...

Extreme sports exist in that strange space where human ambition meets the absolute edge of what’s physically possible. Second ...

Many marine species are no strangers to the depths of the oceans. Some animals, like certain sharks, tuna, or turtles, routinely perform extreme dives, whereas for other species, such behavior has ...

Herbert Nitsch is a world record holder in the extremely dangerous sport of no-limits free-diving. He holds the official world record for swimming to a depth 702 feet without scuba equipment or any ...

Alexey Molchanov is pretty good at swimming down to incredible depths. On September 26, he made sure everyone knew it by ...

In these extreme environments, the crushing pressure, scant food, and lack of sunlight can make it hard to survive. Scientists know that tiny microbes prosper there, but less is known about evidence ...

Last year, deep-sea scientists discovered the phenomenon of “dark oxygen.” This bizarre finding challenges the long-held belief that oxygen is only produced through photosynthesis. Now, scientists are ...

Marine researchers exploring extreme depths say they have discovered an astonishing deep-sea ecosystem of chemosynthetic life that’s fueled by gases escaping from fractures in the ocean bed. The ...