{
  "id": 5751370,
  "title": "Saturn just sprouted a bizarre decagon-shaped cloud pattern",
  "url": "https://urgent.news/2026/09/05/saturn-just-sprouted-a-bizarre-decagon-shaped-cloud-pattern",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-05T09:00:00.000Z",
  "source": {
    "name": "Mashable",
    "slug": "mashable",
    "url": "https://mashable.com/science/saturn-decagon-atmospheric-wave-south-hemisphere"
  },
  "original_language": "en",
  "account": "Astronomers have recently discovered a striking decagon-shaped cloud pattern encircling Saturn's southern hemisphere. This 10-sided formation consists of long sides and corners, situated along a powerful jet stream racing around the planet's globe. The decagon's appearance is a result of Saturn's unique tilt, which causes its south pole to lean toward Earth intermittently over its long seasons. The decagon was only visible to telescopes from 2023 to 2025, when Saturn's south pole swung back toward our planet, allowing NASA's Hubble Space Telescope and ground-based observatories to capture clear images.\n\nThis unusual atmospheric wave pattern is not a solid ring of clouds, but rather a series of bends in the planet's winds. Waves in air function similarly to ocean waves, rising and falling as they pass, and Saturn's wave forms in much the same way. When the south pole tilted toward Earth, the Hubble telescope was able to see the previously hidden pattern for the first time.\n\nScientists are excited about this discovery, as it offers a real-time glimpse into how Jupiter-like planets can sculpt their winds into sharp, angular shapes. The decagon is composed of sides that span over 10,000 miles and is accompanied by a nearby storm, which may influence the wave's formation. The pattern consists of 10 facets, each stretching about 10,000 miles, and its corners slowly shift in strength and position over roughly month-long cycles. Researchers are comparing the decagon to Saturn's hexagonal north-pole wave pattern, hoping to uncover secrets about giant-planet jets and how some settle into geometric patterns while others remain more ephemeral.",
  "summary": "Using NASA's Hubble Space Telescope, astronomers discover a strange 10-sided atmospheric wave pattern around Saturn's south pole.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}