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 ...

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

Nevada experiences over 100 minor earthquakes near Tonopah Test Range, sparking speculation of nuclear testing amidst US-Iran tensions.

CHINA has been accused of a massive nuclear expansion as well as carrying out secret tests, as the United States bids to ...

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald ...

Add Yahoo as a preferred source to see more of our stories on Google. The US said it has intelligence that China conducted banned nuclear explosive tests. The nuclear monitoring organization said it ...

The United States has revealed new details about a Chinese underground nuclear test that it claims happened nearly six years ...

A US official has presented evidence of a secret Chinese nuclear test, raising tensions in global arms control discussions.

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 ...

US officials reportedly believe China’s nuclear expansion is narrowing the gap with the United States and Russia, potentially ...

A nuclear escalation in the Middle East would trigger a global catastrophe. Know the physics behind nuclear weapons, and the ...

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 ...