WOODS HOLE, Massachusetts, July 1 [Category: Environment] -- Woods Hole Oceanographic Institution issued the following news release:

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Human-occupied submersible Alvin certified to return to service

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U.S. Navy certification permits the sub to resume operations to 6,500 meters after a routine overhaul

The Woods Hole Oceanographic Institution (WHOI) today announced that the human-occupied submersible Alvin has been officially ce . . .

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