All I can think of is "To Serve Man"....
Joking aside, I do believe I have seen something that was unexplained. I was young and remember seeing this object, not too high in the sky. It was evening and quite dark. I was looking out of a window of our house and there it was, not making any noise. I could see windows in this "thing." The street light illuminated whatever this was, no glowing lights that I remember. Have no idea what it was.