National Geographic News

PT-109—The Search for the Wreck


In the makeshift computer room aboard the search ship, ocean explorer Robert Ballard scrutinizes sonar scans of the roughly 5-by-7-mile (8-by-11-kilometer) search area.

The sonar search turned up some 70 good targets, of which about a dozen were deemed worthy of visual investigation via ROVs.

Photograph by Ted Chamberlain

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