Iran's president signaled a more diplomatic tone amid heightened tensions and distrust over nuclear negotiations weeks after ...

Tehran issues warning against U.N. snapback sanctions amid concerns over its nuclear program, while expert warns that ...

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

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

Iran’s foreign minister says the country is open to resuming nuclear talks with the U.S. if guaranteed no further attacks.

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

The recent strikes could convince Iran and other states that building nuclear weapons is the only way to prevent such attacks ...

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

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

The appraisal that Iran’s nuclear hopes had been set back 1 to 2 years by U.S. and Israeli bombings was the latest in a ...

Trump says U.S. strikes "obliterated" key Iranian nuclear sites, setting the program back decades, but sources say an early ...