On the evening of February 28, seven planets, Saturn, Mercury, Venus, Jupiter, Mars, Uranus and Neptune will align in the night sky. Five of these (Saturn, Mercury, Venus, Jupiter and Mars) will be ...

On the night of Feb. 28, seven planets will be simultaneously visible in the night sky. (Matt Goerzen / The Brandon Sun Files ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

A rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

Daughter polar vortices' could bring snow and ice to parts of northern, central, and eastern United States later this month, ...

And if the polar vortex is to blame. First, a quick refresher on the polar vortex. The polar vortex is a region of very strong winds that form a circle around the North Pole. The vortex is located ...

The ongoing cold spell, which may bring down the mercury to as low as -50C (-60F), is caused by the expansion of the polar vortex – an area of extremely cold, rotating air around the Arctic ...

At the same time we go into a touch milder southwest flow, the polar vortex will still be churning away over northeast Canada. I don’t expect a full onslaught of the polar vortex to shift south ...

But during the winter, it is joined by a second atmospheric phenomenon dubbed the polar vortex. This swirl of frigid air, located more than 10 miles above Earth’s surface, strengthens each year ...

The blast of cold that fueled record snowfall across Gulf Coast beaches last week was just the latest to transport frigid air that normally swirls above the North Pole to places much farther south ...

The big winter weather challenge has now come and gone in the form of last week’s polar vortex. The Eastern railroads got doubly lucky as they also had to contend with Winter Storm Enzo, a rare ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...