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Saturn's South Pole Hides Evolving 10-Sided Wave
4 Sep
Summary
- A giant, evolving 10-sided atmospheric wave was discovered near Saturn's south pole.
- This 'decagon' appears to be strengthening and evolving, unlike Saturn's stable northern hexagon.
- Observations from Hubble and ground-based telescopes helped reveal this unique phenomenon.
Saturn has revealed a new atmospheric mystery: a giant, evolving ten-sided wave near its south pole. This feature, named a 'decagon' by researchers, presents a striking geometric pattern and appears to be strengthening and changing.
Unlike Saturn's well-known and stable northern hexagon, this southern decagon is dynamic. Its discovery, utilizing data from the Hubble Space Telescope and ground-based observations dating back to 2023, offers a unique chance to study atmospheric development. Scientists are keen to understand its origins and whether it will stabilize.
Researchers first noticed a subtle band in 2024, with Hubble data confirming its presence earlier and showing strengthening trends in 2025. This discovery is significant as scientists have searched for a southern counterpart to the northern hexagon for decades. The decagon's presence within a powerful jet stream and its extension through multiple atmospheric layers make it particularly intriguing.
The exact cause of the decagon remains unknown, but scientists are investigating Saturn's atmospheric circulation. Continued observations by Hubble and the James Webb Space Telescope, alongside computer modeling, are planned to unravel this phenomenon. The contrast between the stable hexagon and the evolving decagon provides a natural laboratory for studying planetary atmospheres.
