A cyclone on the planet Mars (at the upper left part of the planet in the main background image) is shown alongside the Planetary Landscapes artwork "Cyclone" (shown in the inset image). This vortex bears a striking resemblance to cyclonic storms on Earth. Examples of this whirling vortex can be found in the atmospheres of various planets. 

Main image: The planet Mars, featuring the polar ice cap (top) and a hurricane-like cyclone (upper left) (photo credit: NASA)   Inset image: The artwork "Cyclone" (photo credit: Ned Kahn)

How It Works:  A spinning pump turbine at the bottom of a tank swirls floating bubbles into a spiral vortex.  A glass plate on top contains the fluid and creates a window to view the vortex as it swallows the tiny bubbles.  After passing into the vortex, the tiny bubbles are invisibly flung out to the perimeter where they slowly coalesce into larger bubbles which then get drawn back into the vortex.