Soviet Union divers believe they are being watched underwater by a group of aliens called ‘The Swimmers’! From Season 1 Episode 2. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: Subscribe to Quest TV for more great clips: http://www.youtube.com/subscription_c... ...

A mysterious circle of light over Houston has led some people to explore the theory of a UFO circling the skies - and even spying on NASA. From Season 3 Episode 7. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3yWZURY Subscribe to Quest TV for more ...

Taking a look a back at three of the scariest UFO encounters Ben Hansen has investigated. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/36zKyXa Subscribe to Quest TV for more great clips: http://www.youtube.com/subscription_c... Follow Quest on Twitter: ...

Some of the strangest and mind-blowing alien and UFO testimonies from the state of Alaska. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3GyoRok Subscribe to Quest TV for more great clips: http://www.youtube.com/subscription_c... Follow Quest on Twitter: ...

Planes flying over the Alaska Triangle seem to be experiencing strange phenomenons - leading some to believe UFO’s are controlling the aircrafts! From Season 1 Episode 3. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3AA4cP4 Subscribe to Quest TV for ...

While searching the cosmos for exoplanets, the Kepler space telescope discovers a peculiar star, whose light is behaving in a way never seen before. From Season 3 Episode 1 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: Subscribe to Quest TV for more great clips: ...

Eye witnesses explain some of the craziest real life alien encounters they've ever experienced. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3Dk7rKy Subscribe to Quest TV for more great clips: http://www.youtube.com/subscription_c... Follow Quest on ...

The Contact team have travelled around the world to talk to witnesses about their UFO encounters, and the footage that they have seen has blown them away. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3ADIXuT Subscribe to Quest TV for more great clips: ...

These witnesses and science-based evidence lead investigators to believe in the existence of aliens! 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3ADIXuT Subscribe to Quest TV for more great clips: http://www.youtube.com/subscription_c... Follow Quest ...

A drone pilot shows Nick & Sarah footage he captured, which shows a white UFO travelling at over 10x the speed of sound! From Season 1 Episode 7 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3ADIXuT Subscribe to Quest TV for more great clips: ...

The team is investigating a mysterious crash site in Argentina. In 1995 something big crashed in the area, but the local police do not have any records of the incident. Eyewitnesses say that soon after they heard the explosion, the whole area was blocked by unidentified men in black. From ...

The team investigates the 1997 Phoenix UFO sighting having more than 10.000 eyewitnesses. From Season 1 Episode 4. 🇬🇧 Catch full episodes of your favourite Quest shows on discovery+: https://bit.ly/3ADIXuT Subscribe to Quest TV for more great clips: http://www.youtube.com/subscription_c... ...