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The Mariana Trench is the deepest part of the ocean on Earth, located in the western Pacific Ocean. It matters because it represents the extreme depths of our planet's oceans and provides scientists with a unique environment to study deep-sea life and Earth's geological processes.
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Location of the Mariana Trench
The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width. The maximum known depth is 10,935 ± 6 metres (35,876 ± 20 ft; 5,979.3 ± 3.3 fathoms; 6.7947 ± 0.0037 mi) at the southern end of a small slot-shaped valley in its floor known as the Challenger Deep. This makes the deepest point of the trench is more than 2 km (1.2 mi) farther from sea level than the peak of Mount Everest.