Aliens may or may not be real, but the belief in them certainly is. People have dedicated their lives to researching UFO sightings and alleged alien abductions. This series of episodes explains why that is the case. From finding patterns in alleged alien encounters to looking at the impact of “UFOlogist” gatherings, these episodes piece together a timeline that reveals how the belief in aliens and UFOs has been shaped by pop culture, current events, and human psychology.