Discover what tourist submarines are, how they let you explore underwater safely, and just how deep they can take you beneath the surface.

The first military submarine was designed to sabotage enemy shipping, and underwater designs for the next century.

As the nation’s largest military shipbuilder, and with a more than 135-year history of advancing U.S. national security, HII delivers critical capabilities extending from ships to unmanned systems, ...

Submarines on land? It wasn’t just science fiction. The Soviets envisioned nuclear-powered tunneling machines capable of ...

The Sindbad submarine, which sank in the Red Sea on Thursday, has been running tourist trips in the popular Hurghada area for several years. Among the many tourists who enjoyed a trip in the past ...

A commissioning ceremony will be held at a Connecticut shipyard as the first submarine to bear the USS Iowa name becomes an ...

Tourists who went on the same submarine several days ago reported that it was in a "terrible condition". One passenger told Shot media: "The glass was broken and scuffed, and visibility was 50/50.

“The glass was broken and scuffed ... Water flooded the cabin and people panicked.” The tourist submarine sank off the Egyptian Red Sea city of Hurghada early on Thursday.

A tourist submarine has sunk in Egypt, sparking a major rescue operation and leaving multiple people dead or injured. The submarine, named Sindbad, was carrying about 44 passengers of different ...

A large shipbuilder's model of the BB-61 sits in a glass case in the rotunda of the Iowa Capitol in Des Moines. The submarine actually is at sea now, said Hudson, a submariner himself for half his ...