In before the pic of the guy with wild hair and goofy look on his face !
(rolls eyes)
It is a well-known fact that alien ‘visitors’ mimic the current technology of whatever the mudball has as they visit.
So balloons, blimps and now, flying saucers are the drones released by the Aliens who monitor this Eden.
The look of the aliens as well, first they were Angels, Demons, elves. Now, since an outer limits episode showing some big eyed aliens, we have big eyed alien sightings... the
phenomena is a cultural one.
Were paintings of UFOs blurry?
Humans see something unusual in the sky and try to equate it within their range of knowledge. Remember the Superman intro - “It’s a bird, it’s a plane, it’s . . .”?
IMO, Biblical Ezekiel saw something way outside of his experience and still gave a pretty accurate description of an aerial device and outlanders coming to earth. I particularly like the “Wheels with a wheel” analogy. He must have seen cart/chariot wheels spinning rapidly (think cowboy movies and racing stage coaches with their wheels having the “wheels within a wheel” optical illusion.)