NASA - National Aeronautics and Space Administration

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On its way to Jupiter, the Galileo spacecraft looked back and captured this remarkable view of Earth and the moon. The image was taken from a distance of about 3.9 million miles. The brightly colored Earth contrasts strongly with the moon, which reflects only about a third as much sunlight as Earth. Contrast and color have been computer-enhanced for both objects to improve visibility. Antarctica is just visible through clouds (bottom).

Credit: NASA