Hubble Confirms Decagonal Jet Stream at Saturn’s South Pole

Hubble Confirms Decagonal Jet Stream at Saturn’s South Pole

Science

Astronomers using the Hubble Space Telescope identified a decagonal jet stream encircling Saturn’s southern pole, providing a counterpart to the long-known northern hexagon. Earlier, a team of researchers reported a massive ten-sided wave pattern in the southern polar clouds, a formation larger and more dynamic than the hexagon.

Subsequent analysis of Hubble observations collected between 2023 and 2025 indicated the structure is still developing, unlike the stable northern vortex. Researchers also re-examined Cassini mission data and identified a decagonal standing-wave structure in the southern vortex, complementing the known hexagonal pattern.

Acteurs

Agustín Sánchez-Lavega Leigh Fletcher Hubble Space Telescope European Southern Observatory’s Very Large Telescope University of the Basque Country University of Leicester Science Advances

Lieux

University of the Basque Country University of Leicester Very Large Telescope, Chile

Articles

7 septembre 2026
1 au total
Astronomers using Hubble found a new roughly 104,000-mile-wide ten-sided storm forming at Saturn’s south pole, a geometric twin to the famous hexagon that has long circled the north
Astronomers using Hubble found a new roughly 104,000-mile-wide ten-sided storm forming at Saturn’s south pole, a geometric twin to the famous hexagon that has long circled the north

Space Daily • 07 sept. 03h25

Astronomers using the Hubble Space Telescope have identified a decagonal jet stream encircling Saturn's southern pole, offering a counterpart to the planet's long-known northern hexagon.

Crédibilité 78% Manip. 8% Centre
6 septembre 2026
1 au total
Saturn’s South Pole Is Apparently Decagon-Shaped
Saturn’s South Pole Is Apparently Decagon-Shaped

Hackaday • 06 sept. 20h00

Researchers analyzing Cassini data have identified a decagonal standing-wave structure in Saturn's southern polar vortex, complementing the previously known hexagonal pattern at the north pole.

Crédibilité 72% Manip. 8% Centre
4 septembre 2026
1 au total
NASA's Cassini spacecraft circled Saturn for 13 years and never saw a shape at the south pole, but when the planet's slow seasons tilted that pole back toward Earth, a giant ten-sided figure was waiti
NASA's Cassini spacecraft circled Saturn for 13 years and never saw a shape at the south pole, but when the planet's slow seasons tilted that pole back toward Earth, a giant ten-sided figure was waiti

Space Daily • 04 sept. 01h32

NASA and an international team reported that a regular decagonal jet pattern has been observed around Saturn's south pole, a feature not seen in earlier Cassini data.

Crédibilité 78% Manip. 7% Centre
2 septembre 2026
3 au total
Scientists find 10-sided wave pattern swirling in the clouds over Saturn's south pole
Scientists find 10-sided wave pattern swirling in the clouds over Saturn's south pole

ABC News - Breaking News, Latest News and Videos • 02 sept. 20h47

A team of researchers has detected a ten-sided jet stream formation in Saturn's southern polar clouds, a larger and more dynamic counterpart to the planet's known hexagonal feature.

Crédibilité 78% Manip. 8% Centre
A Giant Hexagon Has Been Spinning at Saturn’s North Pole for Decades. Now, Scientists Found Its Twin
A Giant Hexagon Has Been Spinning at Saturn’s North Pole for Decades. Now, Scientists Found Its Twin

Gizmodo • 02 sept. 18h00

Hubble observations between 2023 and 2025 revealed a ten-sided atmospheric wave near Saturn's south pole, a structure that appears to be developing unlike the stable hexagonal vortex at the north pole.

Crédibilité 73% Manip. 8% Centre
Scientists find a churning decagon over Saturn's south pole
Scientists find a churning decagon over Saturn's south pole

AP News • 02 sept. 18h00

A team of researchers has detected a massive ten-sided wave pattern in Saturn's southern polar clouds, a formation larger and more dynamic than the previously known hexagon at the north pole.

Crédibilité 78% Manip. 8% Centre

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