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This Soft Robot Stingray Just Explored the Deepest Point in the Ocean 4,582 While all eyes were on the dramatic descent of NASA’s Perseverance rover last month, a team sent a robot into another alien world, one closer to home: the deep sea. With its towering undersea mountains, dramatic geological features, and unique creatures—many of which remain mysterious—the deep sea is the last uncharted environment on Earth. The inaccessibility isn’t surprising. Sinking any intrepid explorer into blackened waters means facing freezing temperatures and crushing pressure. Ever listened to the sou...

March 3, 2021 at 1:58 pm Inspired by a strange fish that can withstand the punishing pressures of the deepest reaches of the ocean, scientists have devised a soft autonomous robot capable of keeping its fins flapping — even in the deepest part of the Mariana Trench. The team, led by roboticist Guorui Li of Zhejiang University in Hangzhou, China, successfully field-tested the robot’s ability to swim at depths ranging from 70 meters to nearly 11,000 meters, it reports March 4 in Nature. Challenger Deep is the lowest of the low, the deepest part of the Mariana Trench. It bottoms out at abou...