A pilot spots a strange cubed shaped UFO, in this clip from Season 2, "UFO WINDOW SEAT AND LOST UNDERWATER CITY." If you are interested in submitting videos or other content to be featured on Season 2 of The Proof Is Out There, head to https://www.history.com/shows/the-proof-is-out-there/articles/do-you-have-the-proof to agree to our Terms and Conditions and submit your content via our Submission Page. Watch all new episodes of The Proof Is Out There, returning soon, and stay up to date on all of your favorite The HISTORY Channel shows at history.com/schedule. #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Watch more The Proof Is Out There on YouTube in this playlist: https://histv.co/WatchTheProofIsOutThere Check out exclusive The HISTORY Channel content: History Newsletter - https://histv.co/newsletter Website - https://histv.co/History Facebook - https://histv.co/Facebook Twitter - https://histv.co/Twitter The Proof Is Out There investigates the world’s most mysterious videos, photos, and audio recordings, and uses the best technology and experts to render a credible verdict. Each episode analyzes and passes verdicts on several seemingly impossible things “caught on film,” including giant beasts, UFOS, apocalyptic sounds, hairy humans, alleged mutants from the deep, conspiracies, and many other cases. Host and veteran journalist Tony Harris takes nothing for granted in a quest for answers, tracking down eyewitnesses, putting each photo or film through a battery of tests, calling out the hoaxes, and highlighting the most credible evidence in an attempt to better understand our world. HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.