You: What could be stranger than a giant, evolving, 10-sided atmospheric wave encircling Saturn's south pole?
Saturn: Have you seen the north pole? science.nasa.gov/mission/cas…
ALT Black-and-white photo of the north polar region of Saturn, which is surrounded by a hexagonal pattern of wind flow in the clouds
A 10/10 view! 🪐
With Hubble, astronomers discovered a new "decagon" encircling Saturn's south pole.
Scientists think this giant 10-sided atmospheric wave might be an entirely new type of phenomenon evolving on the gas giant: go.nasa.gov/4x1c728
ALT Side-by-side comparison of two views of the gas giant Saturn, labeled “August 29, 2025” at the top left corner. At left is a straight-on view of Saturn, a globe with pale yellow horizontal bands at the equator and orange and pink at the mid-latitudes. Some bands towards the north and south pole have a light blue hue. There are prominent horizontal rings circling at the equator. At right, labeled “Saturn’s south pole,” the south-polar view of Saturn shows concentric bands in its atmosphere, mostly tan and orange, surrounding a dark central region that has a 10-sided outline. A small, dashed circle at the very center of the pole with an “X” inside denotes missing data.