Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

The main risk inside the storage facility is the chemical toxicity of uranium hexafluoride gas and fluoride compounds ...

More than 150 million Americans are under the highest-level extreme heat alerts during a wave of above-average temperatures.

Iran's threat to block the world's most vital oil transit point has raised fears of major global economic consequences.

Tens of millions of people across the Midwest and East are enduring another sweltering day of dangerously hot temperatures as ...

President Trump told the nation that "Iran's key nuclear enrichment facilities have been completely and totally obliterated." ...

The US concentrated its attack on Fordow, an enrichment plant built hundreds of feet underground. Aerial photos give ...

See satellite images of the Iran strikes, a detailed timeline of the operation and the location of the Strait of Hormuz.

U.S. forces have struck Iran's key nuclear sites, drawing threats from Tehran to retaliate, with U.S. military installations ...

A multiday heat wave is bringing high temperatures and health risks from the Midwest to the Northeast, prompting warnings and ...

The U.S. military struck three sites in Iran early Sunday, inserting itself into Israel's effort to destroy Iran's nuclear program in a risky gambit to weaken a longtime foe.