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YouTubeHISTORY
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To know our place in the universe take a look far, far away to the realm of Alien Galaxies. Our galaxy is one of hundreds of billions in the universe. The Milky Way consists of more than a billion stars, our sun being only one of them. In Season 1, Episode 9, "Alien Galaxies." #HISTORY #TheUniverse Find out more about the show and watch full ...
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