Iran will not cooperate with the International Atomic Energy Agency (IAEA) unless it abandons what President Masoud ...

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

President Trump ordered U.S. forces to strike three key Iranian nuclear sites in June, a decision the Israeli leader says ...

The United States and Iran are set to resume nuclear talks, aiming for a diplomatic resolution despite recent military ...

Nuclear experts say the president’s rejection of the restrictive deal forced him to neutralize an Iranian threat of his own ...

Strikes on Natanz, Fordow, Isfahan and elsewhere pose little regional radiation risk but could release plumes of toxic ...

How can you tell if enriched uranium stocks, some of them near weapons grade, were buried beneath the rubble or were secretly ...

Keeping the door open to talks with the United States likely shows Tehran wants to avoid further economic pain as another ...

U.S. strikes on Iranian nuclear sites inflicted "serious and significant damage," Iran has acknowledged for the first time ...

Iran’s Foreign Minister Abbas Araghchi has raised alarming concerns over “reckless” U.S. and Israeli strikes on Iranian ...

Countries without nuclear weapons could decide nuclear nonproliferation and transparency efforts that the world has taken for ...