The United States is increasingly worried about Russia‘s plan to operate a nuclear weapon in low Earth orbit, according to ...

The US is "very concerned" about Russia's plan, an official said.

General Stephen Whiting, head of US Space Command, said America was 'very concerned' about Russian plans to put a nuclear ...

Stephen Whiting said a different strategy was needed to win against Russia - The West is bolstering its efforts to counter a ...

The waters on nuclear testing are murky, with international observers casting doubt on whether the 2020 test even happened — ...

China, the U.S., Russia and others have ramped up their contest over artificial-intelligence-backed weapons and military ...

The nuclear threat is no longer limited to Earth; it has grown beyond the planet to space. In the wake of the growing nuclear ...

North Korea is experiencing a “very serious rise” in its capacity to manufacture nuclear weapons, the chief of the UN nuclear ...

The head of the U.N. nuclear watchdog, Rafael Grossi, said Wednesday that North Korea is significantly increasing its ability ...

Experts say the Trump administration was right to walk away from Iran nuclear talks after Tehran refused to agree to core ...

North Korea is showing a “very serious increase” in its ability to produce atomic weapons, the head of the UN nuclear ...

The head of the U.N.’s nuclear watchdog said Wednesday that “very detailed” measures to verify Iran’s nuclear activities must ...