The Mariana Çukuru, also known as the Mariana Trench, is the deepest part of the world's oceans, located in the western Pacific Ocean. It reaches a maximum known depth of about 10,994 meters (36,070 feet) at a point called the Challenger Deep. This trench is a significant geological feature formed by the subduction of the Pacific Plate beneath the Mariana Plate. The trench is home to unique ecosystems and various species that have adapted to extreme conditions, such as high pressure and low temperatures. Scientific explorations, including manned and unmanned missions, have revealed fascinating insights into the life forms and geological processes occurring in this remote underwater environment.