Saturn’s bold rings are not its only signature feature.

Saturn also boasts a six-sided feature at its north pole, which scientists first noticed when NASA’s Voyager 2 spacecraft visited Saturn in 1981. Saturn’s hexagon is mesmerizing but also odd: the strange phenomenon only appears at the planet’s north pole. In a new study, a researching duo investigated the dynamics of Saturn’s churning gas to figure out what sorts of planetary fluid dynamics are creating this mystifying structure. 

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