The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing ...

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...

The US has shaken a disarmament conference by charging that China carried out at least one clandestine nuclear explosive test ...

Warning at an appearance in Las Vegas that the world is “less safe” without a binding nuclear pact, two key House Democrats ...

VIENNA (AP) — In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear testing, a U.S. government representative defended the stance at a global ...

On July 16, 1945, the first nuclear explosion occurred a few hundred miles south of Los Alamos, New Mexico. Known as the Trinity test by J. Robert Oppenheimer, the director of the Los Alamos ...

Satellite images reveal activity at two Iranian nuclear sites, suggesting that Tehran may be obscuring its efforts to salvage any materials remaining there.

Nuclear weapons testing has affected every single human on the planet, causing at least four million premature deaths from cancer and other diseases over time, according to a new report delving into ...

Thirty years ago this week, on an island in the South Pacific, France conducted its final nuclear test – ending a programme that exposed thousands of people to radiation over decades. The islands ...

Satellite imagery reveals Iran is prioritising the repair of its ballistic missile sites over nuclear facilities while using ...