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YouTubeScience Time
How Big is The Universe?
How Big is The Universe? We begin at the familiar blue and green orb we call home and zoom out to explore the vastness of space. From the Moon, our closest cosmic neighbor, to the edges of the observable universe, prepare to be astonished by the sheer scale of everything that exists. Travel with us as we venture past the Moon, understanding its ...
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YouTubeCosmos Calculated
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YouTubeNational Geographic
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YouTubeBBC Earth Science
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YouTubeAmerican Museum of Natural
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YouTubeBBC Earth
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