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Flat Earth vs. Round Earth | Explorer

The Ancient Greeks concluded Earth was a sphere, which has been validated by scientists ever since. Despite this, there is a movement growing claiming the Earth is flat. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Watch all clips of Explorer here: http://bit.ly/WatchExplorer ➡ Get More Explorer: ...

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Legend of Atlantis (Full Episode) | Drain the Oceans

Exciting evidence emerges of civilizations lost for centuries under the waves, from mysterious underwater pyramids off the coast of Japan to the fabled city of Atlantis itself. Using cutting-edge graphics to reveal what's actually lying on the seafloor, and insight from the world's top marine ...

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Bizarre Alien Life Forms | Known Universe: Alien Contact

Life on other planets would adapt to its environment and might be stranger than you could ever imagine. Known Universe: Alien Contact : http://channel.nationalgeographic.com/series/known-universe/4497/Overview ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National ...

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Extraterrestrial Tsunami | National Geographic

Talk about hanging ten: imagine the wave a meteor could create. Say, 100 feet tall. Ready to ride? ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class ...

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Brazilian Alien Sighting | National Geographic

The gang hears from a witness firsthand. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo ...

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There's an Alien World Beneath Our Feet | One Strange Rock

Deep in underwater caverns in the Bahamas lie clues to potential life in the far reaches of space. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About One Strange Rock From award-winning filmmaker Darren Aronofsky comes a mind-bending, thrilling journey that explores the fragility and wonder of ...

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Palenque and the Ancient Maya World | Nat Geo Live

Archaeologists and National Geographic grantees George and David Stuart offer keen insights into the art and culture of the Mayans. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get More Nat Geo Live: http://bit.ly/MoreNatGeoLive About Nat Geo Live (National Geographic Live): Thought-provoking ...

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Ancient Astronaut Theory | National Geographic

Is it possible that extraterrestrial beings visited our ancient ancestors? Known Universe: Decoding the Skies : http://channel.nationalgeographic.com/series/known-universe/4502/Overview ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's ...

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Imagine Alien Life | Known Universe

What would aliens on other planets actually look like? ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and ...

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