These 5 UFO sightings are so out of the ordinary that it's difficult to make sense of them. Check them out in this The Proof Is Out There compilation.

0:00 FLYING ORBS SPOTTED IN CHILE
5:17 - DANGEROUS UFO ENCOUNTER AT 35,000 FEET
8:45 - CUBE-SHAPED UFO SHOCKS PILOT
13:19 - UFO SIGHTING IN ANTARCTICA
17:12 - BLUE ALIEN ORB CRASH-LANDS ON EARTH

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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.

The HISTORY Channel® 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.