A nuclear engineer explains how the International Atomic Energy Agency monitors peaceful nuclear programs, and why it’s ...

Germany, France and the United Kingdom are coordinating plans to hold nuclear talks with Iran in the coming week, a German ...

Wash., discusses the threat of Iran after U.S. strikes on its nuclear facilities and the potential of new leadership in Syria ...

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

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

Russian President Vladimir Putin met with Iran’s senior advisor Ali Larijani to discuss escalating Middle East tensions and the urgent ...

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

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.

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

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.

Pentagon reports Iran's nuclear facilities were "completely obliterated" in June strikes, offering a more optimistic ...