With all the stuff out there it makes me wonder if you can really call it a void.
Prolly gonna make any commutes a pain. Dust clouds, Oort clouds, coalsacks, asteroids, comets, planetoids, former planets, soon to be planets, ice balls, rock balls, black holes, pot holes, nebule A’s, nebule B’s...
And especially watch out for the nebule C’s! They can be rough.
It’s very, very low average density, a lot of the matter is just piled up as these nebulas, the starts, the planets, and whatnot. :’) Despite the low density, there’s quite a lot of it on any straight line in any direction from an Earth observer.
http://casswww.ucsd.edu/archive/public/tutorial/ISM.html
[snip] the interstellar medium... consists of neutral hydrogen gas (HI), molecular gas (mostly H2), ionized gas (HII), and dust grains. [/snip]
as a barely-relevant sidebar:
http://www.freerepublic.com/tag/haltonarp/index