OPINION: The lack of proven commercially viable ores, the immaturity of crust mining technology and the potential to harm marine life make this a foolhardy endeavor, Andrew D. Thaler writes.

The Mariana Trench is the deepest ocean trench in the world, located in the Pacific Ocean. Learn about its depth, location, ...

Lt. Gov. Josh Tenorio isn't mincing words about the federal government's handling of a proposed deep-sea mining project near ...

At the very bottom of the ocean, where pressure crushes metal and sunlight never reaches, a short, grainy video has sparked a ...