Page 40: of Marine Technology Magazine (May 2021)

Hydrographic Survey Sonar

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INTERVIEW ROBERT BALLARD

Once we launched Drones filming from 1.5-ton Jason off above reveal Hercules the deck of the as it scours the ocean mother ship, the floor day and night remotely operated for any sign of the vehicle went to famous aviator who work, shining a light disappeared in 1937. on Mediterranean

Sea artifacts dating

Inset below: Jesse Goldberg/National back thousands of

Geographic Image Collection years, including the ancient shipwreck we dubbed Isis.

Robert Ballard

Early in the 1989 search for Bismarck,

Argo snagged underwater cables— the black lines in this photograph, adding to the stress of the expedition.

Joseph H. Bailey/National Geographic Image Collection

In 2002, with the dynamic duo of Argus and Little Herc, we inspected a likely target that turned out to be PT-109. Shifting sand on the Pacific Ocean floor had buried all but one torpedo tube, visible here, and a small portion of the boat’s aft port deck.

Odyssey Enterprises/Institute for Exploration 40 May/June 2021

MTR #4 (34-49).indd 40 5/27/2021 1:14:35 PM

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