For those in the northern states, the aurora borealis, or northern lights, are likely to appear this week, according to the ...

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

A minor, 3.3-magnitude earthquake struck in Northern California on Monday, according to the United States Geological Survey.

According to the United States National Oceanic and Atmospheric Administration (NOAA), the G3 (strong) geomagnetic storm will make the northern lights visible in 18 U.S. states, as far south as ...

Maps show where the northern lights may be visible over the United States.

Residents in Northern Colorado may spot a low flying helicopter in the area over the next three months due to an ongoing geological survey.

The northern lights, also known as the aurora borealis, may be visible in as many as 15 northern states Wednesday night, June 25, according to NOAA's Space Weather Prediction Center (SWPC).

The northern lights could be visible once the sun goes down in parts of the northern United States, according to the National Oceanic and Atmospheric Administration's Space Weather Prediction Center.

The northern lights are forecast to grace the skies above the northern United States this weekend, as the Earth continues to be buffeted by a stream of solar wind. The wind is billowing out of a ...

Minor geomagnetic storms could cause a brighter-than-usual northern lights display across the northern United States on Tuesday night.

During times of high geomagnetic activity, which pushes the northern lights further south, the aurora will be visible directly overhead in the northern United States, according to the prediction ...

A strong geomagnetic storm will make the northern lights visible in many U.S. states on New Year's Eve. According to the United States National Oceanic and Atmospheric Administration (NOAA), the ...