Saturn's massive hexagonal storm raging at its north pole likely extends upward almost 200 miles (300 km). Though astronomers have known about the six-sided storm since 1981, "The presence of the hexagon, hundreds of kilometres above the clouds, was a total surprise."

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Saturn's massive hexagonal storm raging at its north pole likely extends upward almost 200 miles (300 km). Though astronomers have known about the six-sided storm since 1981, "The presence of the hexagon, hundreds of kilometres above the clouds, was a total surprise."