Cutting-edge ROVs and ocean-mapping drones helped to find and identify the long-lost wreck of the World War II-era Japanese destroyer Teruzuki, rewriting history in the process.

CHIP JACOBS, WRITER: It's hard for us to imagine what it was like that day in July 1943. It appeared quite suddenly. CHRISTOPHER WELLS, HISTORIAN: Thick, dark, silvery blue clouds descended over the ...