The Mariana Trench, located in the western Pacific Ocean, plunges to a depth of nearly 11,000 meters at its deepest point — the Challenger Deep. Here, in perpetual darkness and under crushing pressure 1,000 times that of the surface, life not only exists but thrives.

Extreme Survivors

Scientists have discovered a remarkable array of organisms adapted to these extreme conditions, including giant single-celled organisms called xenophyophores, translucent sea cucumbers, and shrimp-like amphipods that have evolved unique pressure-resistant proteins.

Perhaps most fascinating are the microorganisms found in the sediment at the bottom of the trench, which survive by metabolizing chemicals rather than relying on photosynthesis — a process known as chemosynthesis.

Exploration Milestones

Only three expeditions have reached the bottom of the Challenger Deep: the bathyscaphe Trieste in 1960, James Cameron's solo dive in 2012, and Victor Vescovo's expedition in 2019.