There are all kinds of interesting theories that ET's are interdimensional entities (demons). It's very fascinating stuff

Came to say that. There are no aliens from other planets. This is all part of the end time deception. UFO's are real - but not from other planets. Angelic technology - Ezekiel describes it... Ezekiel 1:15-21: 15  Now as I looked at the living creatures, I saw a wheel on the earth beside the living creatures, one for each of the four of them.  16  As for the appearance of the wheels and their construction: their appearance was like the gleaming of beryl. And the four had the same likeness, their appearance and construction being as it were a wheel within a wheel.  17  When they went, they went in any of their four directions without turning as they went.  18  And their rims were tall and awesome, and the rims of all four were full of eyes all around.  19  And when the living creatures went, the wheels went beside them; and when the living creatures rose from the earth, the wheels rose.  20  Wherever the spirit wanted to go, they went, and the wheels rose along with them, for the spirit of the living creatures was in the wheels.  21  When those went, these went; and when those stood, these stood; and when those rose from the earth, the wheels rose along with them, for the spirit of the living creatures was in the wheels.