The Mariana Trench, located in the Pacific Ocean, is the deepest known part of the Earth's oceans, plunging nearly 36,000 feet (about 10,900 meters) beneath the surface. For years, it's been a source ...

A new autonomous underwater vehicle (AUV) imaged a previously unexplored portion of the seafloor in ultra-deep waters near the Mariana Trench. Operationalizing this technology for the first time was ...