Watch an Airplane Turn Fog Into Beautifully Spinning Cloud Spirals

We've seen planes create a fiery vortex in the sky before, but here's a more peaceful version of it happening in real time. It's majestically beautiful. The wingtip vortices formed when an Airbus A340 landed at Zurich Airport on a foggy night. Though it looks gorgeous, vortices can be pretty dangerous. » 4/22/13 9:30pm 4/22/13 9:30pm