What to know about the Ghost Fleet and Overlord programs.
The rare and mysterious Deepstaria jellyfish looks like a cross between a plastic bag and a Victorian spectre.
Excerpt: Sea People: The Puzzle of Polynesia
Alongside the wild natural beauty, some evidence of humans.
A mysterious and wonderful cuke.
Stockton Rush is kind of like the Jeff Bezos of the ocean
Machines of the abyss
Now Robert Ballard hopes to find evidence of humans who migrated into North America.
At the bottom of the sea, Colin Devey studies how our continents move away (and toward) each other.
Cindy Lee Van Dover was the first woman to pilot the Alvin submarine, and that was only the beginning.
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