Iridescent Clouds in Etna

During an early morning walk with Jann today, I made a few photos of fog near a backlit barn. I then noticed some color in the clouds. I was seeing iridescence in the clouds.

Iridescence is a diffraction phenomenon caused by small water droplets or ice crystals individually scattering light. The colors are usually pastel pinks, greens, and blues arranged in smudges or orderly bands, especially at the clouds’ edges. The colors can sometimes be vivid as they were this morning.

I took a few more photos to try to capture the colors as best I could. Here is one of them.

You can see other photos I have taken of iridescent clouds in Iceland and Nepal and see examples of other interesting and colorful phenomena in the sky if you CLICK HERE.

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