The U.S. Navy recently completed tests on the GhostSwimmer unmanned underwater vehicle.
Since April 2012, Mystic Aquarium in southeastern Connecticut has told the compelling stories of both the tragedy of the Titanic and the triumph of Dr. Robert Ballard, who discovered the wreckage of the RMS Titanic in 1985.
A British father and son spent six years building a 38-foot powerboat in their backyard, then realized it was too big to launch.
The Austrian firm Designers Migaloo Private Submersible Yachts claims it is the world’s first company to offer private submersible superyachts.
Since mid-November, volunteers on turtle patrol in Wellfleet, Mass., have found nearly 1,200, almost all young Kemp’s ridley turtles, the most endangered of the six species.
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