Satan can appear as an angel of light. Angels can appear in this material world.
It’s entirely feasible that demons, (fallen angels) could appear in any form they wish if it suits their purpose. And if they wish to deceive people by making them think it’s alien abduction or UFO’s, what’s it to them if they can keep people from turning to the living God and being saved from being damned with them for eternity?
CS Lewis in the Screwtape Letters, does a masterful job with giving insight into the possible methods of he enemy. As he maintains, Satan would have us live a comfortable life and die a comfortable death if it can keep us from ever being shaken out of our stupor to seek out God.
yes, plus Satan is “the Lord of the air” and if UFOs or Marion apparitions are in the air he could be the author of lying wonders
Babbling about the Species in Communion without knowing that Catholics receive the Bread and WINE and have for decades while creating a hash of the Trinity and the understanding MOST Christians who aren’t completely ignorant believe, is not the best way to begin a discussion about intersteller dimensionality, Time, and Space.
Guy Malone’s excellent panels of top flight experts build a great case for saying . . .
1. demons were fallen angels who lost their bodies in Noah’s flood.
2. Fallen angels who fell with satan but did not lose their bodies are pretending to be citizens of distant planets as ET’s.