Expedition Unknown: Hunt for Extraterrestrials (2017)
- HD 1080
- Runtime: 41m.
- Status: Ended
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- Languages: en
- Country: United States of America
- Stars: Josh Gates
- keywords: alien, extraterrestrial life
- Production_studio: Ping Pong Productions
- Seasons: 1
- Episodes: 4
- First air date: 2017-10-04
- Last air date: 2017-10-25
- providers: Discovery+ Amazon Channel
- The Expedition Unknown: Hunt for Extraterrestrials is featured in the top rankings of 2017
- #44 in Top Documentary Series of 2017
Josh Gates sets off on the most extraordinary expedition of his career. He'll journey over 50,000 miles to four continents to tackle mankind's greatest question: Are we alone in the universe?