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

Scientists discovered the 1-foot-long animal while aboard a submersible several miles deep in the Pacific Ocean. Take a look.

The deepest regions of Earth's oceans, known as the abyssal and hadal zones, lie at least as far under the water's surface as ...

Scientists on a submersible in the Pacific Ocean found a 1-foot ... noticed an unfamiliar-looking sea cucumber resting on the seafloor about 3.5 miles deep, the study said. Its presence surprised ...

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.