Iapetus shows off its puzzling light and dark terrain.Scientists continue to investigate the nature of this moon's surface. See PIA08384 to learn more. Lit terrain seen here is on the Saturn-facing side of Iapetus (1471 kilometers, 914 miles across). North on Iapetus is up and rotated 8 degrees to the left. Scale in the original image was 7 kilometers (5 miles) per pixel. The image has been
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