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 across a great expanse of space. Subsequently, the title of the photograph was used by Sagan as the primary title of his 1994 book, ‘Pale Blue Dot: A Vision of the Human Future in Space.’
The Daily Omnivore 
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