Administration officials said the case grew out of a presidential order declaring antifa to be a terrorist group.

A nuclear production facility in Washington state, called the Hanford site, once forged the plutonium that reshaped the world ...

A rare wartime relic linked to the dawn of the nuclear age is heading to auction, offering collectors an unsettling glimpse into the machinery behind one of history’s darkest moments. The piece, a ...

A quarter century ago, German political scientist Harald Müller observed that “the very basic question of whether … Germany should rethink its renunciation of nuclear weapons has a very odd ...

Iran’s foreign minister will discuss the country’s nuclear program and the case of an Iranian citizen held in France during a visit to Paris this week, the foreign ministry said Tuesday. The meeting ...