Hubble reveals mysterious 10-sided pattern swirling at Saturn's south pole
Astronomers have identified a giant 10-sided decagon in Saturn’s southern atmosphere, likely forming between 2017 and 2023 and continuing to evolve, with sides surpassing 10,000 miles. The feature, observed via Hubble and ground-based telescopes and published in Science Advances, drifts eastward about 6 mph and challenges the view that Saturn’s north-pole hexagon is unique by revealing a more complex, dual-pole meteorology.
Science · 15 sources · Sep 9, 2026Read itThe journal
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About Hubble Space Telescope
The Hubble Space Telescope is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned as a vital research tool and as a public relations boon for astronomy. The Hubble Space Telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories. The Space Telescope Science Institute (STScI) selects Hubble's targets and processes the resulting data, while the Goddard Space Flight Center (GSFC) controls the spacecraft.
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