Wordless Wednesday: Iridescent Clouds

All of our Facebook friends have seen these pics over the past few days. I really wanted to share them here too.

The first three were taken on 11/12. I used several "devices" to block the sun (house, tree, satellite dish).  The fourth was taken on 11/13, and the cloud was not in the sun's light, and it was a cirrus cloud. This is what wikipedia says about iridescent clouds.