The oceans truly contain countless mysteries.

Some shipwrecks lie deep beneath the ocean, preserved in conditions that slow decay and protect their structure. Inside, ...

The vast majority of our planet’s oceans remain unexplored, hiding secrets that challenge everything we thought we knew about human history and geology. Every so often, sonar technology or daring deep ...

After years of deep-sea sleuthing, National Geographic Explorer Katy Croff Bell has created a treasure map. It’s not drawn on ...

Scientists launch a global mission to explore 10,000 deep ocean locations and uncover unseen marine life and ecosystems ...

Add Yahoo as a preferred source to see more of our stories on Google. The sun shimmers across the glassy surface of Blue Hole, a heart-shaped underwater sinkhole, as two divers prepare to descend into ...

In 2012, three deep-sea divers were on a routine operation in the North Sea when one of them became trapped underwater. Liu had to dive in deep,... 'Last Breath' tells the terrifying story of a ...

Oceanic manta rays dive to record depths of 1,250 meters (4,100 feet), according to a first-of-its-kind study to examine in detail the extreme deep-diving behavior of these rays. Researchers tracked ...

Divers supporting ocean conservation are going to unusual lengths (or depths) to do it. These are not marketing stunts or travel fantasies. They are the real-world experiences driving participation in ...