Revelation 12:7 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels, 8 And prevailed not; neither was their place found any more in heaven.
Evil angels were not always fallen, for they lived in heaven with God, for eons, before they fell. Thus, after they were cast out from heaven, they retained much of their original capabilities, hence the reason why the devil was able to go head to head with the angel Gabriel, as they battled for the mind of the king of Persia, and as the battle for minds and hearts converges during these last days, various manifestations of a supernatural character will begin to unfold.
We are told in the Bible that there will be signs and wonders in the heavens, and upon the earth, distress of the nations, because evil angels will make their presence felt, the world over. Therefore, if no rational explanation is found for those manifestations of UFOs, and if there isn’t any scientific resolution to the phenomena, then the nations of earth will have to seriously consider what the word of God has been saying all along.
According to the scriptures, those manifestations referenced in the Bible, which will be increasing globally would be devoid of all logical explanations, and therefore, the only way we would be able to discern clearly between the true and the false will be by the scriptures alone together with the power and guidance of The Holy Spirit.
2nd Timothy 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness. 17 That the man of God may be perfect, thoroughly furnished unto all good works.
May God add His blessing to the study of His word. “Good night” and God bless!