It's very likely that we're not alone in the universe, and there have been many claims of alien sightings, and alien life visiting our planet, so there's no short of alien conspiracy theories.. These are 8 of the most widely believed (and yes a LOT of people believe in these theories) alien conspiracy theories. Check out Alltime Conspiracies: https://www.youtube.com/user/AlltimeConspiracies Follow me on Twitter: https://twitter.com/Mista_Nightmare
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Duration: 8m 20s
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