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  2. Mariana Trench - Wikipedia

    en.wikipedia.org/wiki/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 10,984 ± 25 metres (36,037 ± 82 ft ...

  3. Bentley Subglacial Trench - Wikipedia

    en.wikipedia.org/wiki/Bentley_Subglacial_Trench

    The Bentley Subglacial Trench is a vast topographic trench in Marie Byrd Land, West Antarctica, 80°S, 115°W. At 2,555 meters (8,382 ft) below sea level, it (along with the deepest points within the adjacent Byrd Subglacial Basin) is among the lowest points on the surface of the Earth not covered by ocean, although it is covered by ice. [1] (.

  4. Challenger Deep - Wikipedia

    en.wikipedia.org/wiki/Challenger_Deep

    Sonar mapping of the Challenger Deep by the DSSV Pressure Drop employing a Kongsberg SIMRAD EM124 multibeam echosounder system (26 April – 4 May 2019). The Challenger Deep is a relatively small slot-shaped depression in the bottom of a considerably larger crescent-shaped oceanic trench, which itself is an unusually deep feature in the ocean floor.

  5. List of people who descended to Challenger Deep - Wikipedia

    en.wikipedia.org/wiki/List_of_people_who...

    Sonar mapping of the Challenger Deep by the DSSV Pressure Drop employing a Kongsberg SIMRAD EM124 multibeam echosounder system (26 April–4 May 2019). The Challenger Deep (CD) is the deepest known point in the Earth's seabed hydrosphere, a slot-shaped valley in the floor of Mariana Trench, with depths exceeding 10,900 meters. [1]

  6. Extremes on Earth - Wikipedia

    en.wikipedia.org/wiki/Extremes_on_Earth

    The lowest point on land not covered by liquid water is the canyon under Denman Glacier in Antarctica, with the bedrock being 3,500 m (11,500 ft) below sea level. [31] [32] The shore of the Dead Sea in Israel. The lowest point on dry land is the shore of the Dead Sea, shared by Israel and Jordan, 432.65 m (1,419 ft) below sea level. As the Dead ...

  7. Trieste (bathyscaphe) - Wikipedia

    en.wikipedia.org/wiki/Trieste_(bathyscaphe)

    Trieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe. In 1960, it became the first crewed vessel to reach the bottom of Challenger Deep in the Mariana Trench, the deepest point in Earth's seabed. [2] The mission was the final goal for Project Nekton, a series of dives conducted by the United States Navy in the Pacific ...

  8. Oceanic trench - Wikipedia

    en.wikipedia.org/wiki/Oceanic_trench

    Oceanic trenches are prominent, long, narrow topographic depressions of the ocean floor. They are typically 50 to 100 kilometers (30 to 60 mi) wide and 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor, but can be thousands of kilometers in length. There are about 50,000 km (31,000 mi) of oceanic trenches worldwide ...

  9. Litke Deep - Wikipedia

    en.wikipedia.org/wiki/Litke_Deep

    Litke Deep (Russian: Жёлоб Ли́тке) is [1][2] an oceanic trench in the Arctic Ocean. The deepest point, also referred to as Litke Deep, is 5,449 m (17,877 ft) below sea level. It is the closest point of the upper surface of Earth's lithosphere to Earth's center, with Challenger Deep being 14.7268 km (9.2 mi) further from Earth's ...