Mass UFO sightings from the last 50 years fuel a mystery in this documentary series featuring eyewitness accounts, expert interviews and new evidence.

In December of 2017, The New York Times published a stunning front-page exposé about the Pentagon’s mysterious UFO program, the Advanced Aerospace Threat Identification Program (AATIP). Featuring an interview with a former military intelligence official and Special Agent In-Charge, Luis Elizondo, who confirmed the existence of the hidden government program, the controversial story was the focus of worldwide attention.

Are we finally a step closer to understanding the great unknown and what it may – or may not – hold? Man has always been curious about what is really out there in the vastness of space, and UFO sightings have been reported for years. Now, with video footage of sightings, radar evidence and eyewitness accounts from around the world, UFOs: The Untold Stories (Tuesdays at 8pm from 13th November) provides an in-depth look at the fascinating and disturbing aspects of encounters with the unexplained.

Dive into the mysteries of some of NASA’s most curious missions and explore stories of engineering achievement and human endurance. Each episode offers first hand testimony from astronauts, NASA mission footage, plus beautifully rendered CGI to bring to life these voyages that reveal unexplained sightings that have dogged many of NASA’s most famous missions.

Reenactments of alien encounters.

From the lost city of Atlantis to the Loch Ness Monster to the mystery of the Nazca Lines, the world is filled with tales of mysterious locations, mythical creatures and strange occurrences. But could these extraordinary stories and theories turn out to be stranger-than-fiction truths? If so, might there be an extraterrestrial explanation for these phenomena? IN SEARCH OF ALIENS follows Giorgio Tsoukalos, an Ancient Astronaut theorist and leading contributor to Ancient Aliens, as he explores the fascinating evidence behind some of the Earth’s most famous mysteries. Through Giorgio’s research of various sites around the world and meetings with scientists, witnesses and experts; this one-hour non-fiction series delves into the unknown and examines clues that could prove a possible extraterrestrial connection within some of the world’s greatest unsolved mysteries.

Ignited by a bombshell story revealing the Pentagon had been tracking UFOs for years, the series examines the history of the phenomenon through cultural and political touchpoints, including testimony from eyewitnesses across the country.

Though claims of extraterrestrial encounters have long been dismissed, many believe the existence of UFOs is not just likely, but a certainty.

Delve deep into a vast archive of over 70,000 UFO files gathered over nearly half a century in Hangar 1. MUFON, an independent organization dedicated to investigating UFOs, has compiled these archives looking for connections, clues, and evidence to find the truth about UFOs.

Encounter: UFO tells the stories of the most incredible UFO sightings and abductions of the past and the modern era. This eight-part series reaches out to over 24 eyewitnesses from across the globe who swear they’ve seen unidentified flying objects, high-speed saucers and/or mysterious lights in the night sky. Each episode follows three shocking eyewitness accounts of supernatural encounters and is supported by compelling evidence: mobile phone footage and photographs. The documentary series distills the biggest mystery of the modern era into riveting, experiential storytelling.

In this gripping docuseries, legendary reporter George Knapp travels the globe to uncover new evidence about UFOs and investigate their presence on Earth.

Investigates the mysteries behind declassified top secret government files with stunning details about the world's most credible UFO sightings and alien encounters. The series pieces together the data on these incidents, and tries to answer the question: what really happened?

Following revelations in 2017 of a secret government program studying UFOs buried deep within the Pentagon, many scientists, academics, and government officials stopped wondering whether UFOs were real and started asking: "what are they?" This journey led them far beyond machines in the sky, taking them down a rabbit hole of alien encounters, near-death experiences, remote viewing, and other seemingly unrelated paranormal phenomena.

Authorities all over the world say UFOs are real, but what are they, and are they a threat? This series examines the best and latest evidence caught on camera.

Real cases of perplexing disappearances, shocking murders and paranormal encounters fuel this gripping revival of the iconic documentary series.

Featuring interviews with his followers, critics and Raël himself, this docuseries traces how a UFO-inspired religion spiraled into a controversial cult.