French President Emmanuel Macron, the person with the power to unleash France's nuclear arsenal, will on Monday update French thinking on the potential use of warheads carried on submarines and planes ...

So long as it doesn't ratify the Comprehensive Nuclear Test Ban Treaty, the United States won't be able to seek short-notice, on-site inspections to deter and detect possible Chinese and Russian ...

In a move that sent tremors through the global security landscape, the United States, in February 2026, publicly accused ...

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.

GENEVA (AP) — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a ...

From Trinity’s fallout to a New Mexico school underground, “Nuclear Family” traces how the bomb reshaped one family and a ...

While China is expanding its nuclear arsenal at a dramatic pace, Russia and the U.S. are also testing new delivery platforms.

A US official says a seismic station in Kazakhstan collected evidence of an alleged China nuclear test at Lop Nur in June 2020.

Officials have ruled out earthquakes or mining as the source of a 2.75-magnitude event in 2020 near China's nuclear test site.

The U.S. government revealed new intelligence on Tuesday suggesting China may have conducted an illicit nuclear test back on ...

A senior US official on Tuesday revealed what he said were new details of an underground nuclear test blast that China ...

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald Trump vows to restart U.S. tests.