Scientific study identifies Saturn's southern decagon
Science Advances
The published study reports a 10-sided polygonal atmospheric wave around Saturn's south pole.
Based on: Science Advances
Verdict
True
Verification confidenceHigh
Explanation
Yes. Scientists have identified a giant 10-sided atmospheric wave, known as a decagon, encircling Saturn's south pole.
The published research and observations from the NASA/ESA Hubble Space Telescope show that the pattern sits within a powerful jet stream and extends through multiple atmospheric layers. Researchers traced signs of the feature in Hubble observations dating back to 2023.
Scientists do not yet know exactly when the decagon formed, what caused it or how long it will persist. Continued observations will determine whether it becomes stable like Saturn's long-lived northern hexagon or continues to evolve.
Key takeaway
Saturn now has a documented 10-sided atmospheric pattern in its southern hemisphere, but its origin and longevity remain uncertain.
Evidence
Supports the claim
Hubble observations confirm an evolving 10-sided wave
ESA/Hubble
ESA/Hubble describes the feature as the first large regular-sided jet pattern observed in Saturn's southern hemisphere.
Based on: ESA/Hubble
Formation date and longevity remain uncertain
Science News
Independent reporting confirms the discovery while noting that researchers cannot yet determine exactly when the feature formed or how long it will last.
Based on: Science News
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