Why the Mariana Trench Is So Deep: Old, Cold, Sinking Seafloor
Seven Miles Down On March 26, 2012, James Cameron climbed alone into a submersible called DEEPSEA CHALLENGER and dropped into the Pacific Ocean about 200 miles (322 km) southwest of Guam. After a descent of two hours and thirty-six minutes, he settled onto the floor of the Mariana Trench’s Challenger Deep at a corrected depth … Read more