Dallas businessman Victor Vescovo became the deepest diving human in history when his Five Deeps Expedition reached the bottom of the Pacific Ocean's Challenger Deep on April 28, the expedition disclosed Monday.
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.
Mr Vescovo found a plastic bag and lolly wrappers, as well as four new species of prawn.
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. They also saw a spoon worm, a pink snailfish, and a colored rocky outcrops, all inhabitants of the deep sea.
"It is nearly indescribable how excited all of us are about achieving what we just did", Mr Vescovo told BBC News.
Sea creatures swim around part of a submersible lander, illuminated by the light of the submarine DSV Limiting Factor on the floor of the Mariana Trench, in a still image from video released by the Discovery Channel.
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.
Dow tumbles more than 500 points as China retaliates on tariffs
The Nasdaq added 0.1% to 7,916.94, while the Russell 2000 index of small company stocks picked up 0.2% to 1,572.99. "It's no big deal".
'Empire' Ending After Season 6
One of the great benefits of announcing a final season is to give the fans the ending they deserve. However, it looks like those efforts were made in vain.
Supreme Court Rules Apple Anti-Trust Lawsuits May Move Forward
A judge could triple the compensation to consumers under antitrust law if Apple ultimately loses the suit. Dailymail.com has reached out to Apple for comment on the court's decision.
Vescovo hopes his discovery of trash in the Mariana Trench will raise awareness of how much is dumped in the oceans, and will pressure governments to better enforce existing regulations, or put new ones in place.
Mr Vescovo is the first person to make multiple dives to the depths of the Mariana Trench, where on one occasion he spent four hours on the bottom.
They also observed a variety of critters. Humanity's waste had reached the deepest parts of the sea floor.
Victor Vescovo, a private equity investor, climbed the highest peaks on the planet's seven continents before turning his attention to the ocean's extreme depths.
The first deep dive into the Mariana Trench was in 1960, when U.S. Navy Lieutenant Don Walsh and Swiss engineer Jacques Piccard ventured into the deep abyss of the Pacific Ocean. As well as the Mariana Trench, it's now completed surveys of the Atlantic Ocean's Puerto Rico Trench, the South Atlantic's South Sandwich Trench and the Java Trench in the Indian Ocean. Next, he will attempt to reach the bottom of the Arctic Ocean's Molloy Deep.
After the Five Deeps expedition is complete later this year, the plan is to pass the submersible onto science institutions so researchers can continue to use it.
Deep sea dives have proven that areas thought to be remote and desolate are actually filled with life - and apparently, pollution.