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An American explorer has found plastic waste on the seafloor while breaking the record for the deepest ever dive.
It is the third time humans have reached the ocean's extreme depths.
Mr Vescovo said: "It is almost indescribable how excited all of us are about achieving what we just did.
The 4.6m-long, 3.7m-high submersible - called the DSV Limiting Factor - was built by the US-based company Triton Submarines, with the aim of having a vessel that could make repeated dives to any part of the ocean.
At its core is a 9cm-thick titanium pressure hull that can fit two people, so dives can be performed solo or as a pair.
It can withstand the crushing pressure found at the bottom of the ocean: 1,000 bars, which is the equivalent of 50 jumbo jets piled on top of a person.
"Our team had to pioneer new camera systems that could be mounted on the submersible, operate at up to 10,000m below sea level and work with robotic landers with camera systems that would allow us to film Victor's submersible on the bottom of the ocean.
The challenges of exploring the deep ocean - even with robotic vehicles - has made the ocean trenches one of the last frontiers on the planet.
Once thought to be remote, desolate areas, the deep sea teems with life. There is also growing evidence that they are carbon sinks, playing a role in regulating the Earth's chemistry and climate.
"This submarine and its mother ship, along with its extraordinarily talented expedition team, took marine technology to a ridiculously higher new level by diving - rapidly and repeatedly - into the deepest, harshest, area of the ocean."
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Courtsey:BBC
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