In the 1960's, the United States spent millions of dollars exploring two different realms: outer space, and the deep oceans. But today, only one of those programs is still around. Why do space colonies seem more likely than underwater cities? And what does it take to build a settlement on the sea floor?
Ben Hellwarth, journalist and author of SEALAB: America's Forgotten Quest to Live and Work on the Ocean Floor
Jim Fourqurean, professor of Marine Science at Florida International University and the director of the Center for Coastal Oceans Research
Roger Garcia, operations director at Aquarius Reef Base
Katherine Sammler, assistant professor at California State University Maritime in the department of Global Studies & Maritime Affairs
Produced by me, Rose Eveleth.
The intro music: Asura
Outtro music: Hussalonia.
Episode art: Matt Lubchansky.
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