The Mariana Trench (sometimes called Marianas Trench) is a mysterious and extremely deep oceanic trench. Plunging deeper than ...

I recently participated in a three-week-long, National Science Foundation-funded research cruise to the Mariana Trench. Our ...

Sunlight cannot penetrate deep water so it's always ... So, are you ready to dive in and discover how much you know about the Mariana Trench? If you need a hint, hit the yellow button.

The Mariana Trench is the deepest place on Earth, and we're still in the dark about much of the life that calls it home. Here are just a few of the trench's eye-popping residents.

In summer 1958, 27-year-old Navy Staff Lt. Don Walsh was assigned to the submarine tender Nereus, part of Submarine Flotilla 1 at the sub base on Point Loma. It was a safe, steady desk job, but ...

The Navy will name a future surveillance ship after Don Walsh, a San Diego State University graduate who, along with colleague Jacques Piccard, made the first dive to the bottom of the world’s ...

Challenger Deep, at the bottom of the Mariana Trench almost seven miles below sea level. The dive, in 1960, was in the primitive bathyscaphe Trieste, now on display at a museum in Washington ...

Success at the tills for the UK’s largest publishers last year meant there was little change at the top of the league table – but most of the academic houses endured a precipitous dive.