Popularized by H.G. Wells' novel, The War of the Worlds, a common trope in science fiction is, of course, the moment of first contact between humans and intelligent extraterrestrial life. The concept has been further explored in Star Trek since the 1960s ...

The truth is out there — and late President George H.W. Bush apparently knew it — telling a federal official that an alien made contact with humans at a secretive New Mexico air base in 1964, according to testimony in an explosive new documentary.