WASHINGTON, March 24 (Reuters) - A senior State Department official on Tuesday said that the U.S. still is assessing how to implement President Donald Trump's order to resume U.S. nuclear weapons ...

A senior State Department official on Tuesday said the U.S. still is assessing how to implement President Donald Trump's ...

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 ...

A top Trump administration official on Tuesday disclosed new details to support its claim that China conducted an underground nuclear explosion during Donald Trump’s first presidency, a contested ...

Nuclear “non-proliferation” – preventing the spread of nuclear weapons beyond states that already have them – has been held up as the rationale for the US-Israeli war on I ...

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 ...

Although President Trump has claimed Iran was weeks away from developing a nuclear weapon, much more work was needed for the ...

Nukemap lets you simulate nuclear explosions on an interactive map. A science historian created the tool years ago but recently updated it. The new version uses real-time weather conditions to ...

The U.S. agency in charge of nuclear weapons achieved a record production of tritium, a radioactive gas that increases the explosive power of nuclear warheads, after the Tennessee Valley Authority got ...

Donald Trump has dramatically shifted his justification for the escalating Iran war, warning the Middle Eastern power was ...

After missile hit city near sensitive site, experts say strike on nuclear reactor would pose little risk of Chernobyl-like ...

For years, Iran’s nuclear fatwa served as a centerpiece of its diplomatic defense. Iranian officials cited it at the United ...