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It looks like Saturn has a brand new moon. Astronomers believe they have witnessed the formation of a moon for the first time – it is being called Peggy. Dr Caitriona Jackman is from Southampton University's School of Physics and Astronomy. (Photo: In this image taken by NASA's Cassini spacecraft, the blur at the outer edge of the ring could be caused by the new moon. Credit: NASA/JPL-Caltech/Space Science Institute)
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