1. The Triest and Challenger Deep

    The crescent-shaped Marina Trench, nearly 1,600 miles long with an average wide of 43 miles, is just east of the Mariana Islands in the Pacific Ocean, just south of Japan. Near the southern end of the Trench is Challenger Deep, the deepest point in the Earth’s seafloor. On January 23, 1960 Swiss engineer Jacques Piccard […]

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