The universe is approximately 13.8 billion years old, and astronomers believe there are at least 100 billion galaxies out there. Even if we've never been visited by extraterrestrial life, chances are good that humans not alone in the universe. In a recent interview with the Conway Daily Sun, presidential candidate Hillary Clinton said of extraterrestrial life, "I think we may have been visited already. We don't know for sure." She jokingly added that she would "get to the bottom of it," if she was elected president.

As far back as 214 B.C., people have been reporting sightings of unidentified flying objects. Sure, most claims can be debunked, but that doesn't mean it's not an actual phenomenon. Don't take our word for it, though; take the word of these high ranking government officials.