This is a vaguely science fiction-style logo that I came up with recently. The design is inspired by hexagons with rounded corners. The Latin word omnium is just the genitive plural of omnis, meaning "of all." Apparently it's also a cycling event in modern usage.
The faded planetary aura in the background seemed appropriate for the meaning of the word and the all encompassing nature of spheres.
Seems like this would work for a science fiction book cover, website logo, or electronic music album cover.