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This picture of a multi-ring basin on Callisto was taken the morning... News Photo1979,Astronomy,Callisto,Horizontal,Human Interest,Kilometer,Moon,Morning,No People,Outdoors,Position,Science,Space,Space Exploration,Sphere,SquarePhotographer Collection: Universal Images Group This picture of a multi-ring basin on Callisto was taken the morning of March 6, 1979, from a distance of about 200,000 km. (Photo by: Universal History Archive/UIG via Getty Images)