Hadal zone and Mariana Trench

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Difference between Hadal zone and Mariana Trench

Hadal zone vs. Mariana Trench

The hadal zone (named after the realm of Hades, the underworld in Greek mythology), also known as the hadopelagic zone, is the deepest region of the ocean lying within oceanic trenches. The Mariana Trench or Marianas Trench is the deepest part of the world's oceans.

Bathyscaphe Trieste

Trieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe, which with its crew of two reached a record maximum depth of about, in the deepest known part of the Earth's oceans, the Challenger Deep, in the Mariana Trench near Guam in the Pacific.

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Challenger Deep

The Challenger Deep is the deepest known point in the Earth's seabed hydrosphere, with a depth of by direct measurement from submersibles, and slightly more by sonar bathymetry.

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Deep sea

The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more.

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Deepsea Challenger

Deepsea Challenger (DCV 1) is a deep-diving submersible designed to reach the bottom of Challenger Deep, the deepest-known point on Earth.

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Don Walsh

Don Walsh (born November 2, 1931) is an American oceanographer, explorer and marine policy specialist.

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Jacques Piccard

Jacques Piccard (28 July 19221 November 2008) was a Swiss oceanographer and engineer, known for having developed underwater submarines for studying ocean currents.

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James Cameron

James Francis CameronSpace Foundation.

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Kaikō ROV

was a remotely operated underwater vehicle (ROV) built by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) for exploration of the deep sea.

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National Geographic Society

The National Geographic Society (NGS), headquartered in Washington, D.C., United States, is one of the largest non-profit scientific and educational institutions in the world.

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Nereus (underwater vehicle)

Nereus was a hybrid unmanned autonomous underwater vehicle (HROV, a type of remotely operated underwater vehicle) built by the Woods Hole Oceanographic Institution (WHOI).

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Ocean

An ocean (the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere.

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Pacific Ocean

The Pacific Ocean is the largest and deepest of Earth's oceanic divisions.

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Remotely operated underwater vehicle

A remotely operated underwater vehicle (ROV) is a tethered underwater mobile device.

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Sea cucumber

Sea cucumbers are echinoderms from the class Holothuroidea.

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Snailfish

The Liparidae, commonly known as snailfish or sea snails, are a family of scorpaeniform marine fishes.

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