Spitzer discovers an enormous ring around Saturn

NASA's Spitzer Space Telescope has discovered an enormous ring around Saturn - by far the largest of the giant planet's many rings. The new belt lies at the far reaches of the Saturnian system, with an orbit tilted 27 degrees from the main ring plane. The bulk of its material starts about six million kilometres (3.7 million miles) away from the planet and extends outward roughly another 12 million kilometres (7.4 million miles)...

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