Movie director James Cameron has returned from his historic dive down into the Mariana Trench — Earth’s deepest known underwater point. Cameron’s solo trip was made possible using an Australian-built ...

Director James Cameron returned safely to the surface on Monday after entering the history books as the first solo diver to reach the depths of the Mariana Trench. The filmmaker, whose 1997 ...

Victor Vescovo, a retired naval officer, said he made the unsettling discovery as he descended nearly 6.8 miles (35,853 feet/10,928 meters) to a point in the Pacific Ocean's Mariana Trench that is the ...

From the deep ocean floor to vast underground caverns beneath our feet, these places challenge our understanding of the world.

The world's oceans are big and dark and deep. They cover approximately 70% of the planet’s surface and contain a huge portion of Earth’s biodiversity. If you want to find some of the weirdest ...

The deepest part of any of the world’s oceans, known as Challenger Deep, is a portion of the Mariana Trench that goes down to ...

I recently participated in a three-week-long, National Science Foundation-funded research cruise to the Mariana Trench. Our target was an east-to-west transect starting near Guam, over the Challenger ...

FILE – In this April 11, 2011 file photo, director James Cameron speaks at the National Association of Broadcasters convention in Las Vegas. Cameron tells National Geographic News that his specially ...