The Cloud Appreciation Society shared Robyn Hennessy Smith's photo (on Facebook; it has a public page (like EmbraceAge) if you want to look).
"Iridescence – the pastel colours that can appear as the sunlight is diffracted by the tiny droplets or ice crystals of a cloud – is named after Iris, the Ancient Greek goddess of the rainbow..."
Nice 
It’s Tuesday and I have a few grumps
