“To date, 1.5 percent of all nuclear power plants ever built have melted down to some degree,” writes the nonprofit org One ...

The Soviet Union’s Typhoon-class was the largest submarine ever built, a 48,000-ton nuclear-powered behemoth made famous by ...

Nuclear submarines are one leg of our nuclear triad, so are they built to withstand a nuclear attack? The answer is complicated. Here's what we know.

When all 118 submariners on board the Kursk were killed, Putin deployed his now-familiar misinformation tactics.

An adviser to the Biden administration on the AUKUS project to provide Australia with nuclear-powered submarines warned on ...

US President Donald Trump said Friday he was ordering two US Navy nuclear submarines to “appropriate regions,” in response to ...

The submarine USS Ohio, capable of carrying up to 154 Tomahawk cruise missiles, arrived in Brisbane, Australia, for a visit.

President Donald Trump issued a rare threat of nuclear escalation on Friday, saying he had ordered two nuclear submarines to ...