Yesterday I happened to come out side just at the right time to see this in the sky! Nature turned on a very brief and magnificent hue in the sky. Only lasting a few minutes, I was lucky enough to grab my camera and take a picture before it vanished.
It was much higher than the heavier cloud, it looked to be a thin sheet of cloud spanning a few kilometres (easy!) closely hugging and around the sun, it transmitted this amazing aura of colours. Oh soooooo lucky to have seen it!