Iridescent contrail behind a British Airways 787
1 month ago
28 days ago
Pride chemtrails? Nice.
11 days ago
No, it's "halo phenomenon", similar to rainbow. This phenomenon can be seen when you watch in direction near to sun and see light interaction on water and ice particles. See https://en.wikipedia.org/wiki/Halo_(optical_phenomenon)
In this case, sun is near to left edge of picture, so you can see part of "halo circle" on trails.