It's plenty easy to lose your bearings while scuba diving, which is why Garmin's new Descent S1 Smart Buoy could really come in handy. It helps submerged divers figure out where they are, plus it lets ...

The Haenyeo women who dive deep into the East China Sea to harvest sea urchins and shellfish spend the most time underwater of any humans ever studied — one to five hours a day, researchers report ...

The national parks still have hidden places – a few million acres of geological gems, stunning wildlife and historical artifacts unknown to most because they lie not on land but underwater. The ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An island 50 miles ...