The polar vortex is stirring up, bringing the earliest hints that the weather is changing with the new fall season. When is ...

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. When will Wisconsin see its first freeze?

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

A man from Harrogate has become the first person to tick off seven of the eight "Poles of Inaccessibility" after reaching the ...

Something strange is happening in the frozen skies above Mars’s North Pole. Deep in the planet’s endless winter darkness, where temperatures drop to unthinkable lows and sunlight never reaches the ...