Down to Earth With: Deep-Sea submersible Alvin

Every oceanographer knows Alvin. Since 1964, the legendary deep submergence vehicle has carried more than 12,000 scientists and other observers to the bottom of the ocean on more than 4,600 dives. Its exploits are legion: locating and recovering a lost U.S. hydrogen bomb in 780 meters of water off the coast of Spain in 1966, exploring the first-known hydrothermal vents (black smokers off the Galapagos Islands) in 1977 and surveying the wreck of the Titanic in 1986.

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Carolyn Gramling

EARTH contributor

Monday, July 4, 2011 - 06:00

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