Russia has proposed a de facto one-year extension of New START, but the president has yet to commit.

A science-oriented advocacy group moved its “Doomsday Clock” to 85 seconds to midnight, saying the Earth is closer than ever to destruction.

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

BERLIN, Jan 29 (Reuters) - European nations are starting to discuss ideas around a shared nuclear umbrella to complement existing security arrangements with the U.S., German Chancellor Friedrich Merz said,

Donald Trump says he has told Iran it has to do "two things" to avoid military action, as the US builds up its forces in the Gulf. "Number one, no nuclear. And number two, stop killing protesters," the US President said, adding that "they are killing them by the thousands".

An ally and former adviser to Russian President Vladimir Putin and former President Boris Yeltsin said the country could use nuclear weapons against Europe should Russia ever be on the verge of defeat in its ongoing war with Ukraine.

North Korean leader Kim Jong Un says his country will unveil plans to further bolster its nuclear program at the upcoming ruling party congress.

China’s top general has been accused of leaking nuclear secrets to the US and accepting bribes as President Xi Jinping purges the country’s senior military leadership. General Zhang Youxi, 75, once considered one of Xi’s most-trusted military allies,

The National Nuclear Security Administration (NNSA) is celebrating “a significant milestone,” announcing that it completed a record number of key element extractions integral to nuclear weapons testing and acceleration.

A representative of Los Alamos National Laboratory confirmed nuclear weapons research will be a priority for its portion of the data center it intends to construct in collaboration with the University of Michigan in Ypsilanti Township.

Scientists at Los Alamos National Laboratory say neutrinos could be used as a diagnostic