What it’s like to live through ‘polar night’ Those who live near Earth’s icy polar regions experience near-constant night every winter.

The deadly cold front was tied to a misshapen Arctic polar vortex. In the winter, this mass of air swirling above the North Pole can push deadly winter weather into southern latitudes.

The polar vortex can dip into North America mainly due to a weakened jet stream. In the mid-latitudes, the Twin Tiers is in the mid-latitude, the jet stream is called the prevailing westerlies as ...

The Arctic Circle is an imaginary line of latitude that circles Earth's northernmost end. Not to be confused with it's colder, Southern Hemisphere counterpart known as the Antarctic Circle, the ...

Polar trees contain records of past solar storms not always detectable in lower-latitude trees, researchers say. Here, nuclear physicist Markku Oinonen of the University of Helsinki takes a core ...

In northernmost U.S. town, the sun won’t set until Aug. 2 “Polar day” has arrived in Utqiagvik, Alaska. The sun will shine for nearly three months straight.

The division between frigid cold temperatures at the North Pole and warmer temperatures into the mid-latitudes helps create a strong jet stream around the Arctic Circle, hence the name polar vortex.

The Swedes call it the Polar Circle (latitude 66 degrees 32 minutes North) and, though we had cameras at the ready, it raced past so quickly - just a string of white stones in a forest clearing ...

According to a recent study published in the Gondwana Research journal, scientists have found reason to believe that dinosaurs in the southern polar circle may have used feathers as a way to cope ...

The Learjet Polar Mission crew has successfully crossed into both the southern and northern polar regions and has returned to Wichita.

People who live in high latitude regions have bigger eyeballs and brains than other individuals, according to new research.