A blade grass a commonplace Earth; a miracle Mars. descendants Mars kn — Carl Sagan, Pale Blue Dot: A Vision Human Future Space

Carl Sagan Pale Blue Dot: A Vision of the Human Future in Space

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A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless, what is the value of a human being?

Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space

Related Authors: Carl Sagan | Pale Blue Dot: A Vision of the Human Future in Space

Related Topics: cosmology, earth, science, space-exploration

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