The best documentaries about aliens are here to remind you that the truth is out there. The best alien and UFO documentary series ever shown on television offers enough evidence to suspend the disbelief of even the most skeptical audience. If you’ve been looking for the best alien documentaries to add some excitement to your TV nights, this list of the best alien and UFO documentary series of all time will help you figure out what needs to go into your queue.
Whether you’re a believer or not, alien documentary series are a great source of out-of-this-world stories. From the mysteries of history in Ancient Aliens to recent government secrets in UFOs Declassified, UFO and alien documentary shows examine the possibilities of life beyond Earth, mixing reenactment, file footage, and information from experts in the field.
Which shows do the best job sharing information about the possibility of extraterrestrial life? Vote up the best alien documentary shows and add any documentary series about aliens and UFOs that are missing. And if you love the extraterrestrial, be sure to check out these great alien tv shows.
UFOs: The Lost EvidenceRichard M. Dolan, Dave Rosenfeld
Premiered: 2015UFOs Declassified (History, 2015) is a Canadian documentary television series. The program features declassified CIA and US Air Force documents pertaining to notable UFO reports.... more
Ancient AliensGiorgio Tsoukalos, Erich von Däniken
Premiered: March 8, 2009Ancient Aliens (History, 2010) is an American television series that presents hypotheses of ancient astronauts and proposes that historical texts, archaeology, and legends contain evidence of past... more
Hangar 1: The UFO FilesYana Trofimova, Johnson Cooley
Premiered: February 28, 2014Hangar 1: The UFO Files (H2, 2014) is an American documentary television series. MUFON (The Mutual UFO Network) provides files from their archives of UFO sightings as the basis for episodes of Hangar... more
Unsealed: Alien FilesIn a recent poll, roughly 80% of Americans said that our government is hiding information regarding the existence of alien life. Then why is so little attention paid to reports of visitors from...
The World's Strangest UFO StoriesThe World's Strangest UFO Stories is a tv documentary mini series....
In Search of AliensGiorgio Tsoukalos
Premiered: 2014In Search of Aliens (H2, 2014) is an American documentary television series. The program follows Giorgio A. Tsoukalos, an ancient alien astronaut hypothesist and the leading contributor to the... more
Alien MysteriesAlien Mysteries is a Canadian UFO documentary series featuring eyewitness testimony that is produced by Exploration Production Inc. for Discovery Channel. Alien Mysteries showcases the real life... more
Premiered: January 1, 1995UFO Files is an American television series that was produced from 2004 to 2007 for The History Channel. The program covers the phenomena of unidentified flying and submerged objects, close encounters... more
Premiered: January 14, 2021UFO Witness (Discovery+, 2021) is an American reality television series. With unprecedented access to the archives of famed ufologist Dr. J. Allen Hynek, Ben Hansen unlocks the secrets of the past to... more
EncountersEncounters: The Hidden Truth was an hour-long TV series that featured real-life stories of paranormal phenomena. The format featured a host and a team of reporters presenting 3 or 4 stories per... more
Unidentified: Inside America's UFO InvestigationLuis Elizondo, Bryan Bender
Premiered: 2019Unidentified: Inside America's UFO Investigation (History, 2019) is a documentary TV series. Featuring former military counter-intelligence officer Luis Elizondo,the show focuses on US government's... more
Premiered: 1992Sightings (Syfy, 1992) is an American paranormal and news television series. The show reports on eyewitness sightings of ghosts, UFOs, and other strange occurrences.... more
Premiered: December 2, 2020Alien Worlds (Netflix, 2020) is a British sci-fi documentary. The series blends science fact and fiction to imagine alien life on other planets.... more
- Heaven's Gate: The Cult of Cults (HBO Max, 2020) is an American documentary miniseries. The four episode series features never-before-seen footage and first-person accounts to explore the infamous... more
Shaun Ryder On UFOsShaun Ryder
Premiered: 2013Shaun Ryder on UFOs (2013) is a British documentary television series. Host and ex-Happy Mondays frontman Shaun Ryder travels the world to meet others who were abducted, as he was at the age of 15.... more
Steps to the FutureSteps to the Future (2010) is a French documentary television series.... more
Premiered: 2020The Secret of Skinwalker Ranch (History Channel, 2020) is a horror non-fiction mystery television series created by Kevin Burns. A team of scientists and experts conduct a thorough search in one of... more
UFO DiariesCharles E. Sellier Jr., Vicki Cooper-Ecker
Premiered: 2019Mysteries Decoded (The CW 2019) is an American documentary television series. This hour-long documentary series hosted by US Navy veteran Jennifer Marsall examines unsolved mysteries from Area 51 to... more
Premiered: 2004Space Odyssey: Voyage to the Planets is a fictional documentary about a manned voyage through the solar system. Space Odyssey premiered in 2004 and was made by the BBC. It was written and directed by... more
Premiered: January 30, 2008UFO Hunters is an American television series that premiered on January 30, 2008 on The History Channel, produced by Motion Picture Production Inc., and ran for three seasons. Jon Alon Walz was the... more
Indians + Aliens II
Premiered: 2012Chasing UFOs (National Geographic Channel, 2012) is an American reality television series. Paranormal researcher Erin Ryder, Geologist Ben McGee and UFOlogist James Fox set out to uncover the truth... more
Indians + Aliens I