Smoke Rays - Alberta, Canada

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Smoke rays, Alberta, Canada
. Peg Zenko (Tangent Photos) took this panorama from Whistler's Mountain in Jasper National Park. Smoke from a fire in British Columbia scatters the sunlight and makes the sunrays visible. The rays look bluish because small smoke particles are Rayleigh scatterers - they scatter blue much more strongly than longer wavelength red light. ©Peg Zenko, shown with permission.