Mysteries Swirl Around Cyclones At Saturn's Poles
Riding with Robots writes "New images of Saturn from the robotic spacecraft Cassini are shedding new light on monstrous storms that swirl at both poles of the ringed planet. 'These are truly massive cyclones, hundreds of times stronger than the most giant hurricanes on Earth,' said one mission scientist. Cumulus clouds twirl around the vortices, betraying the presence of giant thunderstorms lurking beneath. But the storms do not disturb the bizarre hexagonal cloud formation previously reported."
I would be curious to know how far down these things go. They look like Taylor columns to me, and in principle could go all the way to the other side, assuming there isn't a rocky core down there somewhere.