Deepest Point Is 36,000 Feet

The sheer scale of the Challenger Deep is difficult to comprehend. Plunging to a depth of nearly seven miles in the western Pacific Ocean, this abyss exists in a world of perpetual darkness and near-freezing temperatures. The pressure here is over 1,000 times that at the surface, an equivalent weight of having 50 jumbo jets stacked on a single person. This incredible trench wasn't formed by chance; it's a direct result of plate tectonics. The massive Pacific Plate is slowly sliding beneath the smaller Mariana Plate in a process called subduction, creating the deepest scar on the planet's surface.

Reaching this hostile (Review) environment is a monumental feat of engineering. The first, and for a long time only, visit was in 1960, when U.S. Navy lieutenant Don Walsh and Swiss engineer Jacques Piccard descended in the bathyscaphe *Trieste*. For over half a century, they remained the only humans to have witnessed the bottom firsthand. That exclusivity changed dramatically in the 21st century, starting with filmmaker James Cameron’s solo dive in 2012. Since then, advanced submersibles have allowed dozens more scientists and adventurers to visit, revealing a surprising amount of life uniquely adapted to survive the crushing forces of the deep.