Texas explorer completes deepest ocean dive in history

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The team dived to the bottom of the trench five times during the expedition over April and May.

The dive was later verified to be 10,972m and Victor became the first person to reach the deepest part of the Pacific Ocean. "I feel so fortunate to have had the means, been able to assemble such a great technical team, and work with others on the expedition to make it all a reality".

Robotic landers were also deployed for further analysis of the seafloor.

"It's nearly indescribable how excited all of us are about achieving what we just did", Vescovo said.

Witnessing the dive from the Pacific was Don Walsh.

It's not the first time plastic has been found at the bottom of the sea, but it's a reminder of the scale of the problem.

"Now in the winter of my life, it was a great honour to be invited on this expedition to a place of my youth".

In addition to discovering at least three new species of marine animals during the dive series, including a shrimp-like crustacean known as an amphipod, the team also discovered what appears to be a plastic bag and candy wrappers at the bottom of the ocean. They reportedly discovered human-made objects on the ocean's floor, like plastic objects and angular metals, and undiscovered marine species.

Prior to Vescovo's monumental dive, only two people had successfully made it to the bottom of Challenger Deep.

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Tests by Newcastle University researchers found that sea creatures living in the deepest reaches of the sea had fragments of plastic in their stomachs and muscles.

The dive forms part of the Five Deeps expedition - an attempt to explore the deepest points in each of the world's five oceans.

He's also been to the highest peak of every continent and to the bottom of four of the world's oceans.

Images from the fourth of The Five Deeps dive to Challenger Deep in the Pacific Ocean.

What can you find at the deepest point of the ocean?

A 90-millimeter-thick titanium pressure hull built to withstand the pressure of the deep.

"It has been a monumental week for ocean exploration; we have broken world records and achieved a number of world firsts.

And now in 2019, the Five Deeps Expedition's submersible Limiting Factor was the third", Walsh said, adding, "And I was there to see it".

The creative director of Atlantic Productions, Anthony Geffen, explained it is the hardest thing he has ever filmed, due to the near-freezing temperatures and pitch black the sub operates in.

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