As the highlights are rotated 180 degrees about a central point (presuming the image was cropped), it’s going to be camera internals
Thanks. I’m glad no-one suggested ‘from the clouds’, because I couldn’t see how that would work! Also, some of the reflections (especially in the lower photo at #1) are in the gaps between clouds.
Searchlights or laser beams can be seen reflected from clouds (I’ve seen it myself) ... Read even more
