Hubble Spots New Decagon-Shaped Cloud Pattern at Saturn's South Pole
Astronomers using the Hubble Space Telescope have identified a ten-sided cloud formation encircling Saturn's south pole, a counterpart to the long-known hexagon at the planet's north pole. The decagon, detailed in a new Science Advances study, has sides roughly 16,800 kilometers long and sits near a jet stream blowing close to 260 miles per hour, even though the shape itself drifts at less than 6 mph.