Exploring the Depths of the 'Hidden' Arctic Ocean North of Alaska, the deepest part of the Arctic Ocean goes more than a mile down and is locked in ice. An international team of scientists is probing this so-called Hidden Ocean, from a U.S. Coast Guard icebreaker. NPR's Richard Harris sends an audio postcard from the expedition.
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Exploring the Depths of the 'Hidden' Arctic Ocean

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Exploring the Depths of the 'Hidden' Arctic Ocean

Exploring the Depths of the 'Hidden' Arctic Ocean

Exploring the Depths of the 'Hidden' Arctic Ocean

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  • <iframe src="https://www.npr.org/player/embed/4776088/4776131" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
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Katrin Iken and Elisabeth Calvert prepare to dive into 30-degree water in the Arctic ocean. Shawn Harper holds the safety line. Jeremy Potter/Courtesy of NOAA hide caption

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Jeremy Potter/Courtesy of NOAA

Researchers call it the Hidden Ocean. It's the deepest part of the Arctic Ocean, north of Alaska. More than a mile deep, it is locked in ice most of the year. Now, an international team of more than 40 scientists is probing the Hidden Ocean, working from a U.S. Coast Guard icebreaker. NPR's Richard Harris recently spent some time with the expedition and sent back this audio postcard from the sea ice.