The polar vortex's icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

A "polar vortex" is bringing intense cold and heavy snow to large swaths of the US and Canada. How is this winter weather ...

The polar vortex, as explained by the National Weather Service, is a large area of low pressure and cold air that encircles the Earth’s poles. Even though it’s often framed in the media as a weather ...

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes but is ...

"polar vortex" usually refers to the gigantic circular upper air weather pattern in the Arctic region, enveloping the North ...

A stretched polar vortex like this one happens lower ... the U.S., the world remains in an overall warming pattern. Earth’s average overall temperature set yet another monthly heat record ...

A new study led by a team of scientists from the University of Leeds has revealed that the cold conditions that have allowed ...

Northern Hemisphere (left) and Southern Hemisphere (right) NSIDC Polar Stereographic Projection coverage maps. — Credit: National Snow & Ice Data Center (NSIDC) It specifies a projection plane or grid ...

That’s not even close to the size of the “planet-killer” asteroid that slammed into Earth 66 million years ago and led to the extinction of dinosaurs. That one was estimated to be about 6.2 ...

Astronomers have been keeping a close eye on an asteroid between 130 and 300 feet long that has a very small chance of crashing into Earth in less than eight years. And as they learn more about ...