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Paint-by-numbers
Too anxious to wait for the official processed image, employees from the Voyager Telecommunications Section at NASA’s Jet Propulsion Laboratory, attached digital image data into numbers printed on strips of paper side by side to a display panel and hand coloured their numbers, like a paint-by-numbers picture.
The completed image was framed and presented to JPL director,
providing the first close-range image of Mars.
Image Credit: NASA/JPL/Dan Goods
Space probe Mariner 4, July 15th 1965.