Add Yahoo as a preferred source to see more of our stories on Google. A whirling vortex of smoke seen on camera as the "Park Fire" in California exploded Thursday looked just like a tornado, but ...

A smoke ring formed in the sky after a transformer explosion in Branford on Thursday and the mysterious looking formation is called smoke vortex ring. Smoke vortices form when there is a blast through ...

Weather experts have been left baffled by a solid black ring which appeared in the sky -- but a former UFO investigator claims it's a Smoke Vortex. SWNS.com Alien hunters say a fresh sighting of a ...

A wildfire camera caught the moments when a vortex formed in the thick smoke created by the Park Fire in Northern California. The images show the smoke begin to twist as very hot air rises and new air ...

At the moment, temperatures in Chicago are lower than both Alaska and Antarctica. And signs of the bitter cold are all around — most notably surrounding the Chicago River, which is currently "smoking" ...