A look at possible alien contact events during the 20th century, such as the Battle of Los Angeles in 1942 and the Roswell UFO Incident in 1947; the recent attempts by man to make contact with extraterrestrial life through the SETI project; and what would happen if aliens answered back; what protocols exist to determine who would speak on behalf of mankind, and how we would communicate.
Tags
History Channel, Kevin Burns, ancient, alien, ancient aliens, documentary, series, watch, online, film, top, download, video, movie, documentation, return, ufo, roswell, incident, 1947, los angeles, battle, 1942, seti, project
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