Smoke produced by hundreds of wildfires burning across Canada has drifted thousands of miles and nearly circled the entire ...

Smoke from Canada’s wildfires, which have burned vast tracks of forest in B.C. and the Northwest Territories, has been spotted as far away as Portugal. And its travel is fuelled in part by ...

Potential northern lights viewing in the UP will likely be blocked by wildfire smoke and clouds overnight June 2. Here's a look at what to know.

Video shows intense plumes of amber smoke fill the sky over Marseille, France after a wildfire broke out on Tuesday (July 8). Footage captured yesterday shows thick clouds of amber smoke from the ...

Georgia officials are encouraging certain residents to evacuate after a fire erupted at the BioLab plant in Conyers. Video shows multi-colored clouds of smoke rising from the facility.

A structure fire in the 3800 block of 15A Street S.E. resulted in a thick black cloud of smoke that could be seen from a distance in Calgary on Tuesday.

Noctilucent clouds form in the mesosphere, or the third layer, at an altitude of about 45 to 55 miles. Since they’re so high up, they catch sunlight long before local sunrise and after sunset ...