EXCLUSIVE: Donald Trump may have sparked a new global nuclear arms race with his war on Iran, a former assistant secretary of ...

As the conflict between the US-Israel and Iran escalates, nine countries possess an estimated 12,300 nuclear warheads ...

The United Nations' top nuclear watchdog, IAEA Director-General Rafael Grossi, told CBS News that Iran still has the technical ability to restart its nuclear program, even though U.S. military strikes ...

Confusion on whether Iran truly needed only “two weeks to four weeks” to make a nuclear weapon, as President Donald Trump suggested on Monday, hangs over the ongoing U.S. and Israeli war on the ...

As the US-Israel war with Iran intensifies, the threat of a nuclear attack looms large - here's the full breakdown of which ...

President Trump launched military strikes on Iran after several rounds of talks over the country's nuclear program and ...

In 2005, Congress canceled the RNEP nuclear bunker-buster bomb over fears that it might provoke China. Much has changed in the two decades since.

A mission to seize or destroy Iran’s nuclear material would be one of the riskiest military operations in modern American history.

"I think that the new leadership under Mojtaba might be willing to take more risks," a former Israeli official told Newsweek.

Canadians are openly discussing the merits and risks of pursuing a nuclear weapon. Europeans are similarly considering a ...

In the latest turn, Trump spelled out what he called the Islamic Republic’s “sinister nuclear ambitions” Tuesday night.

A website that lets users simulate a nuclear attack has seen an uptick in users amid the ongoing war with Iran.