Astronomers have announced that the newly discovered outer ring of Uranus is blue. Made up of small particles (which explains why it looks blue, the same reason why the Earth' sky is blue - tiny particles in the atmosphere scatter light as blue) , the ring also has a moon companion called Mab, the same setup with Saturn's A ring and its moon, Enceladus.Imke de Pater, a professor of astronomy at the University of California Berkeley, led the team that studied the rings. The study was published recently in Science.
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