The polar vortex is Earth's frozen guardian—but that guardian is starting to fail. This video dives into the science behind ...

A 2015 satellite photo captured a series of stunning "von Kármán vortices" swirling off Madeira and the Canary Islands. The ...

The polar vortex is coming—and raising the odds for intense winter weather. In the stratosphere over Siberia, temperatures recently jumped nearly 100 degrees Fahrenheit, shoving the polar vortex ...