Physics Universe on Instagram: "How the Mariana Trench formed—and how freakishly deep it is The Mariana Trench formed due to a powerful geological process called subduction. Here, the dense Pacific tectonic plate slowly slides beneath the lighter Mariana Plate, bending the Earth’s crust downward over millions of years. This continuous sinking created the deepest scar on our planet’s surface. Its deepest point, Challenger Deep, plunges about 11,034 meters (36,201 feet)—deeper than Mount Everest i

10 Strange Animals in the Mariana Trench - Ocean Info