NASA has identified two types of auroras—fast-pulsating and flickering. Pulsating auroras flash on and off within seconds.

NASA is launching rockets into the Northern Lights from Alaska to investigate why auroras have distinct movements such as flickering and pulsating.

The next chance for "accumulating" snow comes Friday night into Saturday morning. And by "accumulating," the National Weather ...

Ottawa is the charming capital city of Canada and a great winter destination.

Cold temperatures and spotty snow will mark the week in Western Washington, meteorologist Ted Buehner says Monday.

Friday will be mostly cloudy in the Twin Cities metro, with scattered snowflakes and highs reaching the mid-20s.

Between the freezing rain and snow accumulations, you can expect slow and slick travel. Accumulations will come in around ...

A slow-moving low-pressure system will bring scattered precipitation to southern Utah, especially in the southwest.

The slight warm-up will also bring more clouds and a chance for some light snow. The best chance will be in northern Iowa with only light flurries for central and southern Iowa expected later ...

The D.C. area faces its first ice event of the winter Wednesday night that could lead to slippery roads and treacherous ...

This evening’s storm will be concentrated north of Massachusetts, leaving Boston and Providence with only a few scattered ...