The vortex at Saturn’s north pole is oddly hexagon shaped. As it tursn out, the shape comes from smaller vortices at the edges. Scientists have been able to create these hexagon shapes in labs creating currents similar to those on Saturn. You can watch a video of that HERE.
We only recently started getting the best views of this when Saturn finally hit the portion of its orbit where the sun hits its north pole, and Cassini was there to catch it! We’re learning more about how this strange storm acts as Saturn’s northern hemisphere reaches it’s Summer solstice.