![[Astronomy Answers]](../../pic/pr.gif "Astronomy Answers"){kind=small}
![[Dictionary]](../../pic/glossary.gif "Dictionary"){kind=small}
![[AnswerBook]](../../pic/book.gif "AnswerBook"){kind=small}
![[Universe Family Tree]](../../pic/tree.gif "Universe Family Tree"){kind=small}
![[Science]](../../pic/science.gif "Science"){kind=small}
![[Starry Sky]](../../pic/sterren.gif "Starry Sky"){kind=small}
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| Type | : | Universe | ─── | Filament | ─── | Supercluster |
| Size | : | 4200 Mpc | ─── | 150 Mpc | ─── | 70 Mpc |
| Earth | : | Universe | ─── | filament | ─── | Local Supercluster |
Galaxies are not spread randomly through the Universe, but are concentrated into thread-like structures called filaments, which typically have a length of 70 to 150 Mpc. The filaments form the boundaries between different voids. Parts of filaments where many galaxies are relatively close to one another are called superclusters.
![[Tree]](../../pic/docsupar.gif "Tree"){kind=small}
![[Universe]](../../pic/docsleft.gif "Universe"){kind=small}
![[Supercluster]](../../pic/docsrigh.gif "Supercluster"){kind=small}
http://aa.quae.nl/en/boom/filament.html;
Last updated: 2016−02−07