How much of the world's religious literature is actually celestial (extraterrestrial) in origin made more palatable by anthropomorphizing it?
Indian history is rife with stories of epic battles with both invading and protecting extraterrestrials. Indra is seen here repelling invaders from near orbit space.
Roswell is by far the most famous news report of a recovered craft (possibly shot down). But it is not the only such story.
Triangular-shaped and otherwise configured craft are becoming more numerous than "saucer" sightings.
The famous and widely reported (and some say quickly debunked) Russian halo continues to fascinate and produce UFO evidence.