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Saturn has two hexagons, not one, swirling around its north pole

Author: Christopher Crockett / Source: Science News

Saturn hexagons
DOUBLE SIXES Saturn’s hexagon (pictured) has a new friend. A second six-sided vortex, not visible here, has appeared hundreds of kilometers above this one.

A new hexagon has emerged high in the skies over Saturn’s north pole.

As spring turned to summer in the planet’s northern hemisphere, a six-sided vortex appeared in the stratosphere.

Surprisingly, the polar polygon seems to mirror the famous hexagonal cyclone that swirls in the clouds hundreds of kilometers below, researchers report online September 3 in Nature Communications.

When NASA’s Cassini spacecraft arrived at Saturn in 2004 — during summer in the southern hemisphere — the probe spied a similar vortex…

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