This artist's impression shows Venus Express over the 'double-eye' atmospheric vortex at the planet's North pole. In fact two enormous atmospheric vortices, with very complex shapes and behaviour, rotate vertically over both poles of Venus, recycling the atmosphere downwards. The vortex at the North pole, the only one previously studied in some detail, completes a full rotation in only three days. Venus Express' observations will help understand how the stormy atmospheric circulation on Venus work.