A group of WWII-era scientists used themselves as guinea pigs to learn to breathe underwater. Their experiments helped make D-Day possible.

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A diver of the British Royal Navy is walking down a pier of Cherbourg harbor on
A diver from the British Royal Navy wore a self-contained suit without a cable attaching him to a ship in 1944.

AP Photo

A YouTuber made a breakthrough in a decade-old case of a Navy veteran who vanished in the Ozarks

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YouTuber James Hinkle
YouTuber James Hinkle made a breakthrough in a cold case by finding a submerged vehicle in a pond.

James Hinkle/YouTube

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