これは不思議。土星の北極の渦の形が六角形だったんだと。

Bizarre Hexagon on SaturnThe hexagon is similar to Earth’s polar vortex, which has winds blowing in a circular pattern around the polar region. On Saturn, the vortex has a hexagonal rather than circular shape. The hexagon is nearly 25,000 kilometers (15,000 miles) across. Nearly four Earths could fit inside it.

Cassini Images Bizarre Hexagon on Saturn – Solar System via reddit

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