From a ballet of white-tip reef sharks to a cardinal fish releasing freshly hatched babies from its mouth, these underwater ...

here are 20 unbelievable images of the plastic that’s clogging our oceans.

In February, NASA launched its PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) satellite with which it has been capturing images of not just the aqueous surfaces of our planet, but also pictures ...

A new study finds that the rate of ocean warming has more than quadrupled over the past 40 years — and pinpoints why.

About nine million tons of visible plastic trash enter oceans each year—then there’s the waste we can’t see. This story appears in the May 2019 issue of National Geographic magazine.

Capturing something as fast-changing as waves can result in fascinating photos, and this photographer ... on the south coast of England, making the ocean a huge part of her childhood.

28,019 people played the daily Crossword recently. Can you solve it faster than others?28,019 people played the daily Crossword recently. Can you solve it faster than others?

Human activities are threatening the health of the world's oceans. More than 80 percent of marine pollution comes from land-based activities. From coral bleaching to sea level rise, entire marine ...