More On Nuclear Operations

South Korea received U.S. approval to build a nuclear-powered attack submarine that can operate for months underwater, track...

Williams, 58, will oversee the nation’s nuclear arsenal as the administrator of the National Nuclear Security Administration.

For decades, the threat of nuclear conflict between the U.S. and the Soviet Union hung over humanity — and occasionally the...

In a statement, the Russian Foreign Ministry linked the decision to efforts by the U.S. and its allies to develop...

In a warning to Russia, President Donald Trump said Friday he's ordering the repositioning of two U.S. nuclear submarines...

Congress earlier this month finally got around to making New Mexico fallout victims of the first test of an atomic bomb and...

An amendment added to the House version of a must-pass national defense bill calls for more research and scrutiny into cancer...

A U.S. intelligence report suggests that Iran’s nuclear program has been set back only a few months after U.S. strikes and...

President Donald Trump said the strikes, which he described as “very successful,” had hit the Natanz, Fordo and Isfahan sites...

Iranian media said at least 95 people were wounded and that several residential buildings in the capital’s suburbs were hit...