I think I saw one once when I was a kid.
This ball of light - actually three of them - making no sound flew over my head one night.
Even now, probably 60 plus years later, the only thing that goes through my mind about it is - that was pretty cool.
My wife makes fun of me all the time for watching "Ancient Aliens" on TV.
(I don't let on to her that I think the show is pretty silly too .
There are a whole lot of things in this world that really do make you wonder how & why they were made and who did make them.