Wednesday, September 16, 2026

Saturn's South Pole Features Newly Formed Atmospheric Decagon

Astronomers examining recent Hubble Space Telescope images of Saturn have spotted a remarkable 10-sided wave pattern, or decagon, cutting through several layers of the gas giant's southern atmosphere. (Credit: NASA, ESA, STScI, Agustin Sánchez-Lavega (UPV), Amy Simon (NASA-GSFC), Michael Wong (UC Berkeley); Image Processing: Alyssa Pagan)

The planet Saturn is arguably the most recognizable planetary object in the entire solar system because of its massive rings. Anytime a child is asked what their favorite planet is, the answer is often “The one with the rings!” But, while Saturn’s rings are its most striking feature, the famed planet has a myriad of other unique features that often get overlooked, specifically its polar activity. This includes a long-known rotating hexagon in its north polar region, but what kinds of activity could be occurring in Saturn’s southern polar region, and what could this teach scientists about planetary formation and evolution?



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