Void (cosmography terminology)

== Introduction ==
In cosmography, a void is a vastly empty region of space where little to no matter exists. The largest voids are vast spaces between galaxy filaments, these are called supervoids, or rarely hypervoids if their diameter exceeds 500 million lightyears. Smaller voids are usually called voids, if their diameter is less than 250 million lightyears. Even smaller are subvoids, which have diameters that have less than one million lightyears. The smallest voids are Interstellar-voids and microvoids. 
Inside voids may exist void galaxies, which are galaxies in a larger void structure, like super/hypervoids. 
The most known voids consist of Boötes void, the largest void in Dimension 1, Proxima-Sol Interstellarvoid, the most known interstellar-void, and the Andromeda-Milky Way galactic void, which exists between the Andromeda Galaxy and Milky Way Galaxies.
== Appearances ==
* None
Category:Cosmography