Maybe: 1) Jesus said that he is not of this world... meaning he's from another world? 2) At the tower of Babel, it was said that the people were getting high enough to reach God. How, when in modern day, we go much higher than they did back then. Remember, God scattered the people across the world so they couldn't reach him. He acted. Yet, we go higher and nothing happens. Could it be that there was a big spaceship in the sky and they were trying to reach it? 3) It's said in the new testament that the armies will point there weapons to the sky to battle Jesus and his angels. Think the movie Independence Day. Could the armies of the world be pointing their guns to spaceships in the sky? 4) Chariots that came out from the sky (heaven) were described as having breastplates of armor. Since they had no way of saying UFO (word/understanding didn't exist back then) they could have been describing a UFO. 5) When Sodom and Gomorrah were destroyed, it was said fire came out of heaven (sky?). Again, think Independence Day when the fire came from the ships that destroyed the city.