When Iran’s covert nuclear program came to international attention over two decades ago, Tehran insisted that its intentions were peaceful and that it had no plans to develop weapons. The country’s ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Iranian Parliament Speaker Mohammad Bagher Ghalibaf looks on as parliament members chant in support of the IRGC while wearing ...

When a nuclear accident happens, it’s vital that scientists have accurate fallout models.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A nuclear bomb map created using a simulation tool shows the ...