China has just crossed a threshold that many nuclear engineers have talked about for decades but no country had previously achieved at scale: turning thorium into a practical, operating source of low ...

The findings have triggered debate inside the US intelligence community about whether Beijing is shifting its long-standing ...

GENEVA (AP) — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago and urged countries to ...

The United States on Friday accused China of carrying out a secret nuclear test in 2020 as the Trump administration calls for a broader nuclear weapons agreement including both China and Russia. The ...

WASHINGTON, Feb 17 (Reuters) - A senior U.S. official on Tuesday revealed what he said were new details of an underground nuclear test blast that China allegedly conducted in June 2020. Assistant ...

(CNN) — US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

A DF-17 road-mobile medium-range ballistic missile is seen during a military parade in Beijing's Tiananmen Square on September 3, 2025. China may want to develop new nuclear warheads for its ...

This is read by an automated voice. Please report any issues or inconsistencies here. After the U.S.-Russia nuclear treaty expired, U.S. officials revealed declassified details of an alleged 2020 ...

Late last week, the U.S. leveled an explosive claim: China is planning secret nuclear weapons tests and has already conducted at least one. China denied the allegations, but experts are worried that ...