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Saturn's South Pole Exhibits a Decagon Shape

Astronomers have identified a ten-sided decagon pattern at Saturn's south pole, similar to the previously known hexagon at its north pole. This discovery reveals a fascinating wave phenomenon within the gas giant's atmosphere.

The decagon shape is not a physical structure but an atmospheric wave phenomenon within Saturn's gas giant atmosphere. This finding was published in a recent research article by Agustín Sánchez-Lavega et al. in Science Advances.

While the hexagon at Saturn's north pole is a well-established feature, the south pole's decagon is a new observation. Both shapes are believed to result from standing waves within a polar vortex, influenced by atmospheric wave interactions.

The north pole's hexagon is driven by a strong eastward jet. For the south pole's decagon, researchers postulate that a meandering wave, rather than a jet, is responsible for the pattern, making it less obvious but equally intriguing for understanding planetary fluid dynamics.

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