Trash found littering ocean floor in deepest-ever sub dive

Trash found littering ocean floor in deepest-ever sub dive

The deepest deep-sea dive ever may have just found them, the BBC reports.

The Mariana Trench is a deep and long hole in the Pacific Ocean floor between Japan and Australia. The previous record was held by "Titanic" director James Cameron in 2012.

Explorer Victor Vescovo also discovered four new crustacean species in his descent 11 kilometres down into the deepest part of the ocean on the third Mariana Trench expedition since 1960.

Details of the voyage, made May 1, were released for the first time on Monday.

The dive was the first for The Five Deeps Expedition, funded by Vescovo, and is being filmed for a Discovery Channel documentary.

"Going to the extremes I believe is a natural inclination of man", Vescovo he says.

His submarine, "Limiting Factor" also made history. Along with the dive depth record, Vescovo holds the distinction of being the first person to dive to the trench a couple of times.

The expedition's mission is to conduct detailed, sonar mapping missions at the five deepest spots in our oceans.

View from "Limiting Factor" submarine during a Mariana Trench dive.

Next up is a trip to the bottom of the as-yet unexplored Molloy Deep in the Arctic Ocean, due to be completed in August 2019. It took 3.5 to 4 hours to reach the record-breaking depth - a flat, beige basin covered with a thick layer of silt.

At almost seven miles deep, you could fit the whole of Mount Everest into it.

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Prior to Cameron's dive, the first-ever expedition to Challenger Deep was made by the U.S. Navy in 1960, reaching a depth of 10,912 meters.

"I always had the urge to explore, even as a little kid", Vescovo said.

Discoveries in the Challenge Deep included "vibrantly colorful" rocky outcrops that could be chemical deposits, prawn-like supergiant amphopods, and bottom-dwelling Holothurians, or sea cucumbers.

He found sea creatures, but also found a plastic bag and sweet wrappers.

The Five Deeps Expedition is exploring the planet's deepest undersea places.

The scientists now plan to test the creatures they collected to see if they contain microplastics - a recent study found this was a widespread problem, even for animals living in the deep. "Those maps, once we've processed them and cleaned them up, they will get put on online repositories, so they will be made available to anyone who wants to use them", said Jamieson.

"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".

"It is nearly indescribable how excited all of us are about achieving what we just did", Vescovo told the BBC.

"That is my honest hope - to sell the system to an institute, government, or individual, that can use the whole diving system to advance marine science for decades to come".

Vescovo broke the previous Mariana Trench diving record by about 36 feet.

"Honestly, it feels like a very great privilege", Vescovo told For The Win Outdoors in an email. "And then I came up".

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