National Geographic Explorer-at-Large Bob Ballard revisits the Iron Bottom Sound—rediscovering vessels, and making new finds.

In July 1945, the USS Indianapolis completed one of the most important deliveries in history, only to meet a tragic end days later. A Japanese submarine attack left the ship’s crew stranded in open ...

A new study published in Marine Pollution Bulletin shows that oil is still seeping from the wreck of the USS Arizona, more than 80 years after its sinking at Pearl Harbor. The study focuses on samples ...