Rabbi Gordon - Haazinu: 5th Portion

Rashi's comment on Deuteronomy 32/24 On Wednesday you made a comment about Rashi and "demons that fly do battle with Israel." I don't want to appear disrespectful Rabbi Gordon, but I am intrigued with Rashi's comment. I have come across such comments in my Torah Anthology studies. So, what do the sages know about "UFO's" and demonic activity in the air? Also, do you and other Orthodox Rabbis take the Book of Enoch seriously?
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