In this striking image of clouds, iridescent clouds, formed by diffraction, can be seen. This difraction occurs when a cloud is very thin and is composed of droplets uniform in size. The colors created by this diffraction can be seen from the entire color spectrum, are usually very delicate. These iridescent clouds are formed most commonly in lenticular clouds. They can also be seen is altocumulus and cirrocumulus clouds, as well as in trails left by rockets or airplanes. They are usually seen in clouds that are newly forming, due to the similar age and size of droplets that make up the cloud. This picture was taken in Canada, from the Top of the World Highway.
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