NASA "moon landings" were cover for secret military space program. Then when outed as faked, the inference is dropped that they were designed to demoralize the USSR. All the better, as it made it look as if we were NOT capable of leaving the planet. IMHO.
You are forgetting something… angels. According to the Bible, the good ones, i.e. God's, outnumber the fallen ones 2 to 1. So don't be so hasty to categorize all "aliens" as demons. the Bible says otherwise.