We have more satellites than ever before, but when they burn up they create a new kind of air pollution. Evidence is now ...

CLEVELAND — High above the Arctic, swirling like a giant icy crown, the polar vortex is a permanent feature of our atmosphere ...

A cold winter is in store for those in the northern U.S., with milder temperatures across the southern tier, according to ...

The weather body has now released the three-month UK outlook for October to December, with the possibility of milder ...

The polar vortex is making a return to the forecast, but the counterintuitive weather feature is nothing to fear.

The polar vortex is stirring up and bringing the earliest signs of changing weather. Here's when and what to know about the first frost in Pennsylvania ...

It still feels summery in Mississippi with daytime highs in the 80s and relatively high humidity. But nights are getting a hint of a chill, and winter will be here before you know it. The polar vortex ...

The polar vortex is a large region of low pressure and cold air that has always existed around Earth's poles. While the polar vortex is weakening for the season, it does not directly cause winter ...

The polar vortex is stirring up, bringing the earliest hints that the weather is changing as autumn has officially arrived. In the short term, this means gradual cool-downs and a more active storm ...