Here’s a picture I took years ago also known as the “Gay Batman Signal”. It’s been passed around the internet for years so I thought I’d post it up here.
This is not Photoshopped! There was a full rainbow at first, then a thunderstorm rapidly developed over the mountains to the northeast. The storm clouds moved in and cut off part of the rainbow. To the right and left of the storm it was completely sunny.
Taken at 6:34 pm July, 22nd, 2007 about 11 miles south of Cantwell, Alaska.
Picture by Dennis Zaki in Denali National Park, Alaska.

Gay Batman Signal