U.S. officials briefed on the evolving intelligence assessment of the Iran bombing caution that the claim of total ...

Snapback” sanctions will be triggered by the end of August if Tehran fails to make concrete progress to limit its nuclear ...

Languages: English and Farsi Iran is threatening to raise uranium enrichment to weapons-grade levels and exit the Nuclear Non ...

After more than two decades of hard-nosed diplomacy on Iran’s nuclear program, European negotiators are finding themselves ...

Officials in Israel are acknowledging that some enriched uranium may have survived the powerful U.S. strikes on Iranian ...

WASHINGTON — President Donald Trump tried to keep a fragile ceasefire between Israel and Iran in place Tuesday as reports ...

The process of uranium enrichment increases the concentration of U-235, an isotope that can sustain a nuclear chain reaction.

The U.S. attack on Fordow did real damage to the site. But it also set back the IAEA’s oversight of Iran’s nuclear program.

Trump says U.S. strikes "obliterated" key Iranian nuclear sites, setting the program back decades, but sources say an early intel assessment says Iran could rebuild some of its capabilities in months.

Core components of Iran’s nuclear effort were damaged but not destroyed by U.S. airstrikes on three key facilities, say ...

President Donald Trump dismissed an earlier Defense Intelligence Agency assessment as inconclusive and premature.

With questions mounting over the impact of the U.S. and Israeli onslaught on Iran’s nuclear facilities and military infrastructure, a return to hostilities could be a matter of when, not if.