The National Nuclear Security Administration is a semi-autonomous agency within the Department of Energy that oversees the ...

The UN nuclear watchdog chief Rafael Grossi said Friday that time was running out to get a deal on Iran’s nuclear program.

Only Donald Trump can make the call to launch U.S. nuclear-armed ICBMs. Our reporter visits the subterranean world of the ...

Former President Ronald Reagan entered office known as a fire-breathing hawk. He left office having signed major agreements ...

Time is running out to secure an accord to rein in Iran's nuclear program as Tehran continues to accelerate its enrichment of uranium to near weapons grade, UN nuclear watchdog chief Rafael Grossi ...

Supreme Leader Ayatollah Ali Khamenei said on Wednesday Iran should further develop its military, including its missiles, ...

Iran banned the import of foreign cars in 2017, while not allowing iPhones newer than the 13 to be registered on the ...

The U.S. government wants to select "disparate" locations where it could eventually make bomb-grade uranium again.

Khamenei’s remarks upend months of signals from Tehran to the United States that it wanted to negotiate over its rapidly ...

Iran has faced suspicion for decades over its nuclear ambitions and whether it’s developing the capability to fire an atomic ...

The Trump administration may classify uranium as a critical mineral, unlocking federal funding and fast-track permitting for ...

As Prime Minister Benjamin Netanyahu of Israel prepares to meet with President Trump, the question of whether to strike ...