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A diver launches a deep-sea submersible in the Caribbean Sea
September 2, 2022

Deep-Sea Diving

A diver helps launch the Alvin deep-sea submersible in the Cayman Trench for an expedition researching oceanic crust, led by National Geographic Explorer at Large Robert Ballard for a story in the August 1976 issue.
Photograph by Emory Kristof, Nat Geo Image Collection
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