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What Lies Ahead? Voyager 1 captured this view of Europa transiting over Jupiter’s Great Red Spot on 3 March 1979. The image is composed of a 16-frames mosaic made of 41 individual images. The black spot is Io’s shadow on Jupiter’s clouds. Voyager 1 Imaging Science Subsystem (ISS): NASA/JPL-Caltech/Alexis Tranchandon/Solaris