Saturn's hexagon change in season. These changes were observed by the Cassini spacecraft. One hypothesis, developed at Oxford University, is that the hexagon forms where there is a steep latitudinal gradient in the speed of the atmospheric winds in Saturn's atmosphere. Similar regular shapes were created in the laboratory when a circular tank of liquid was rotated at different speeds at its centre and periphery. The most common shape was six sided, but shapes with three to eight sides were also produced. The shapes form in an area of turbulent flow between the two different rotating fluid bodies with dissimilar speeds. A
Hexagon Sun released songs with the title "Turquoise Hexagon Sun" and "Orange Hexagon Sun"; the former has been featured on "Boc Maxima", "Hi Scores", and "Music Has the Right to Children", and the latter on the bootleg "Old Tunes, Vol. 2" tape. The existence of Hexagon Sun and oblique references to it in interviews, web sites and album packaging have contributed to what many people regard as the mythological aura surrounding Boards of Canada. Opinions on this subject differ greatly; certain fans of Boards of Canada and their record label Warp regard Hexagon Sun as a mysterious cult, while others believe that