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Chinese unmanned submersibles descend 10,890 meters in Mariana Trench

Three unmanned deep sea landing facilities descended over 10,000 meters underwater and completed sea tests in the world deepest Mariana Trench in the Pacific.
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Footage has been released from Hollywood director James Cameron's trip 11km down to the deepest place in the ocean, the Mariana Trench.
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 Earth's deepest seabed reached by James Cameron

The Hollywood film director James Cameron has become the first person in 50 years to reach the deepest seabed in the world, at the Mariana trench.
In a one-man submarine, Deepsea Challenger, he journeyed 11km down.

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James Cameron gets ready to dive to the Mariana Trench

Hollywood director James Cameron may be close to making a dive to the deepest place on Earth.
In a one-man submarine, he plans to dive 11km down beneath the waves to the bottom of the Mariana Trench, in the western Pacific.
There has only ever been one dive there, and that was half a century ago.

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Formation of The Mariana Trench



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The Mariana Trench or Marianas Trench is the deepest part of the world's oceans. It is located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres long but has a mean width of only 69 kilometres. It reaches a maximum-known depth of about 10.91 kilometres at the Challenger Deep, a small slot-shaped valley in its floor, at its southern end, although some unrepeated measurements place the deepest portion at 11.03 kilometres. If Mount Everest, the highest mountain on Earth at 8,848 metres, was set in the deepest part of the Mariana Trench, there would be 2,060 metres of water left above it.
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See also Bathyscaphe Trieste



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Oceans' deepest depth re-measured

US scientists have mapped the deepest part of the world's oceans in greater detail than ever before.
The Mariana Trench in the western Pacific runs for about 2,500km and extends down to 10,994m.
This measurement for the deepest point - known as Challenger Deep - is arguably the most precise yet.

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