Iridescent Clouds from the Top of the World Highway
A rare phenomenon known as iridescent clouds can show vivid unusual colors or a whole spectrum simultaneously making clouds appear to be different colors. These clouds are formed by small water droplets of the apparent same size. When the sun is hidden behind these thinner clouds, (as well as being in the right position), the thinner clouds diffract the light in coherent manner with different colors being deflected by different amounts. This awesome picture was taken last year outside Dawson City in the Yukon Territory in Northern Canada.
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