@jerry @ksaj that is a fake picture, any real rainbow needs to be circular not elliptical
this is a real full rainbow
https://apod.nasa.gov/apod/ap221227.html
Edit: here is where other people did sleuthing on the image
https://leadstories.com/hoax-alert/2023/03/fact-check-colorful-image-is-not-a-real-photo-of-a-complete-rainbow-captured-by-a-pilot-at-30000-feet.html