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Loading contentCaption: 'Pale Blue Dot' — Earth as a single pixel, photographed by Voyager 1 from about 6 billion kilometres away in 1990.
Taken at the request of Carl Sagan as Voyager 1 turned back for a last look, this image shows Earth as a mote of dust suspended in a sunbeam — a lasting statement of cosmic perspective.
NASA / William Anders
NASA / Apollo 17 crew
NASA/JPL-Caltech
NASA
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