What's the worst job you can think of? Anything that involves being stranded at the bottom of the ocean tops the list for me. That's why I'm honestly glad I didn't catch "Last Breath," the ...

When I first catch a glimpse of Fabien Cousteau, he looks a little like an astronaut on a spacewalk. In fact, he’s 63 ft.

For deep reef divers, descending into the ocean’s mesophotic layer can feel like exploring the moon. Discovering never-before-seen marine species is part of the mission. The deep diving team heads ...

Only a scattering of light penetrates the deep water, more than 300 feet beneath the ocean surface off the coast of Guam. It’s like twilight to the human eye, even in the middle of the day. This part ...

“Going up in space is relatively easy compared to going deep into the ocean,” said Sylvia Earle, 90, an oceanographer and ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

A dome-fronted submersible sinks beneath the waves off Indonesia, heading down nearly 1,000 meters in search of new species, plastic-eating microbes and compounds that could one day make medicines.