National Geographic: Throughout history, only one Earth has been known to exist in the universe. Soon there may be another. And another. And another. - discu.eu

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National Geographic: Throughout history, only one Earth has been known to exist in the universe. Soon there may be another. And another. And another. http://ngm.nationalgeographic.com/2009/12/new-earth/ferris-text 6 comments 13/12/2009 science

"Seeking New Earths": Throughout History, Only One "Earth" Has Been Known To Exist. Soon There May Be Another. And Another. And Another. http://ngm.nationalgeographic.com/2009/12/new-earth/ferris-text 3 comments 29/11/2009 space

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New "Devil Worm" Is Deepest-Living Animal http://news.nationalgeographic.com/news/2011/06/110601-deepest-worm-earth-devil-science-animals-life/ 46 comments

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