Astronomers spot a 10-sided polygon wave circling Saturn's south pole

A team led by Agustín Sánchez-Lavega of the University of the Basque Country has identified a giant ten-sided atmospheric wave encircling Saturn's south pole, mirroring the famous six-sided hexagon long observed at the planet's north pole. The feature was first glimpsed in amateur astronomer images from 2024 and confirmed through further analysis in 2025.