Get in touch with Chloe Mayer by emailing [email protected] Satellites orbiting the Earth have captured the effects of a "polar vortex" on camera, as swathes of the U.S. are gripped by Arctic ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

The glass is multicoated, which ensures efficient light transfer to the eye, and Vortex has included BaK-4 prisms, which enable a bright image with good contrast. Why you can trust Space.com Our ...