This Side of Xanadu

We have continents and we have seas. We have a thin layer of gas to separate us from the dark vacuum above. So does Titan. We have people, 6 billion and more, each enveloped in his or her own unique importance. Titan has none.


Thin Layer Separate Image Relative Brightness Unique Importance Unknown Surface 

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© Springer Science+Business Media, LLC 2008

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