Iran will react to any reimposition of United Nations sanctions over its nuclear program, the country’s foreign ministry spokesperson says, without elaborating on what actions Tehran might take.

The Pentagon on Wednesday sharpened its assessment of Iran's nuclear program, declaring that Iran's ability to build a ...

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.

Iran and Israel have continued to trade deadly blows into the weekend, following an unprecedented Israeli attack on Friday aimed at destroying Tehran’s nuclear program and decapitating its ...

With questions mounting over the impact of the U.S. and Israeli onslaught on Iran’s nuclear facilities and military ...

Experts long argued that airstrikes alone would not be capable of permanently ending Iran's nuclear program absent ...

After decades of threats, Israel launched an audacious attack on Iran, targeting its nuclear sites, scientists and military leaders. Here’s what to know about its controversial nuclear program ...