The Deepest Point in the Ocean: The Challenger Deep Overview The Challenger Deep is the deepest known point in the Earth's seabed hydrosphere, located in the Mariana Trench in the western Pacific Ocean. This trench is situated east of the Mariana Islands and is the result of oceanic plate subduction. The depth of the Challenger Deep is approximately 36,070 feet (10,994 meters), which is nearly seven miles beneath the ocean's surface. Historical Background The Challenger Deep was named after the British Royal Navy ship HMS Challenger, whose expedition from 1872 to 1876 was the first to measure the depths of the Mariana Trench using a weighted sorro nding rope. The area was further explored during subsequent expeditions, with significant contributions from the USS Tuscarora in the 1870s and the HMS Challenger II in 1951, which used echo sounding to measure depths. Scientific Exploration Modern exploration of the Challenger Deep has utilized advanced technology, including subm...
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