Ujkasuperverse (USUV) is so, so big, that it can contain the Terminal Dodecahedrons. Also, voids between The Great Superpentagon have the superstring- it is a normal string, but its length is approximately plank lengths. This makes it very useful for building structures for sub-plank length citizens and creating fractal structures. Superpentagons here have shells made of matter from Superstring. This abundance of easily malleable matter makes it a prime place for planet construction. It isn't very stable though, and anything created even a single mile bigger then a Superpentagon disintegrates FAST.
The particles causing this disintegration are the yellow parts of the verse, which seek to stabilize the average mass of an object within the verse. These have been found to be a type of Primordium Theta tied to Ujkasuperverses and them only. It is, again, also due to the instability of superstring. Blue and red masses seem to be types of gas yet to be studied.