A Seoul-based company has expressed its intention to build nuclear-powered submarines for the U.S. Navy. Hanwha Group claims that its Philadelphia plant could support construction of advanced ...

The U.S. Navy has some of the most advanced nuclear submarines in the world. Its newest addition is named after an important ...

Submarines are a vital part of the United States Navy, but there is one in particular that stayed at sea for 727 days. Here's ...

January 21, 1954. The US Navy goes nuclear when the USS Nautilus sets to sea. The world’s first nuclear-powered submarine was ...

South Korea's government has announced that it has finalised an agreement to build nuclear-powered submarines in partnership with the United States. The US has approved the "attack submarines" and ...

Seoul, South Korea (CNN) — South Korea wants to join the undersea naval elite – and has received the blessing of US President Donald Trump to do just that. Having Seoul become the seventh country in ...

The mystique of nuclear-powered submarines has been captured by at least half a dozen popular Hollywood films. Some have centered on the drama of undersea warfare and the risk of global nuclear ...

USA TODAY asked experts what changes our leaders can make to nuclear missile modernization to make the country a safer place.

The death of the last treaty between Russia and the U.S. that limited the size of nuclear arsenals may spark a new arms race, ...