Far more dangerous than U-235 are the elemental products given off when nuclear fuel goes through fission—especially iodine, ...

European governments say military force alone cannot eradicate Iran's nuclear know-how, which is why they want a negotiated ...

This is not the time for weakness. This is the time for peace through strength, backed by American resolve and unrelenting ...

Ballistic experts say it's too soon to determine how much damage Iran's nuclear facilities sustained in the weekend attack.

Minutes after urging Israel not to drop bombs following the start of the cease-fire, President Trump said Israel wasn't going ...

The U.N.'s atomic watchdog and other experts say radiological contamination is likely inside a key uranium enrichment site at ...

Iran has two known underground nuclear enrichment sites, the one Israel attacked on the first day of its assault at Natanz, ...

Satellite images provide the first glimpses of the aftermath of U.S. strikes on three sites said to be central to Iran’s ...

Pictures show the destruction at the Isfahan facility doesn’t include the buildings likely housing three research reactors.

A decade of planning and complex deception tactics made last weekend's historic B-2 bomber strike on Iran possible, according ...

As the U.S. deployed decoy B-2 bombers west over the Pacific, military officials quietly sent a “strike package” east over ...

Trump claimed Iran’s nuclear facilities had been “obliterated,” but some Iranian officials downplayed the impact of the ...