The truth is out there! Welcome to WatchMojo, and today we’re counting down our picks for the best documentaries about the supposed existence of extraterrestrials. Our countdown includes “A Strange Harvest”, “The UnXplained”, “UFOs and Nukes – The Secret Link Revealed” and more! Do you believe in life on other planets? If not, do you think any of these documentaries could convince you? Sound off in the comments!

Check out these other UFO-centric videos:
Top 10 UFO Incidents That Have Still YET to be Explained:
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5 Times NASA Caught UFOs on Camera:

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