So are you saying Christians should not believe in aliens??? I think God created way more wonderful stuff out there in the universe than you and I.
Think about it, to God you and I are less than a single cell in out bodies..would be kinda boring for him/her/it to watch over us don't you think?
Even though I enjoy the alien invasion movies, I have often thought it is likely God's enemy training us to fight his approaching return. Otherwise, why in the world would you point your weapons at Christ's army as it descends on the earth????? That would be insane. But, isn't that what the Bible says will happen?
Just read the verses.