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

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

American strikes on three Iranian nuclear sites overnight were a "spectacular military success," President Donald Trump has ...

Large parts of the United States faced a radio blackout on Thursday following a strong solar flare from the sun. The "extreme ...

US airstrikes on three Iranian nuclear installations on Saturday night have put authorities in New York and Washington on ...

A heat dome has begun to blanket the US and is expected to bake more than 30 states with high temperatures that could shatter ...

The map created using a simulation tool shows the devastating impact of a hypothetical U.S. nuclear strike on Tehran, Isfahan ...

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

Dozens of cities have held anti-ICE demonstrations over Trump's immigration crackdown since Los Angeles protests began.

There have been 307 hurricanes that made landfall in the mainland United States since records began in 1851, and now you can see them all on a single map. University of Oklahoma student Michael ...