As Trump orders UFO file release, scientists debate a deeper question—if aliens exist, what would they think of humanity?

Before zombies shambled about, ghoulishly feasting on the flesh of those too slow to flee, aliens from outer space ruled ...

Stepped-up interest in UFOs also is swirling as the United States heads back toward the moon with Wednesday's launch of ...

UFOs, or the notion of them, have been around a long time. Here’s a look at how the various iterations of the subject — from ...