The polar vortex weakens, bringing plunging temperatures and snow to millions across the U.S. this Thanksgiving. Experts warn ...

Once every two years there is a disruption of the polar vortex. So you get very strong warming like tens of degrees Celsius ...

For a few days, it sounded like a scene from a disaster movie: a “piece” of the sun appeared to shear away from its surface and whirl around the north pole, leaving even seasoned solar physicists ...