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Science & Reason on Facebook: http://tinyurl.com/ScienceReason Great Minds, Great Words: Carl Sagan - Pale Blue Dot. A Vision of Human Future in Space. The Pale Blue Dot is a photograph of planet Earth taken in 1990 by Voyager 1 from a record distance, showing it against the vastness of space. By request of Carl Sagan, NASA commanded the Voyager 1 spacecraft, having completed its primary mission and now leaving the solar system, to turn its camera around and to take a photograph of Earth. It w

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