Here’s a much better illustration. There are many voids, just as there are many superclusters. They are one of the large scale structures in the universe. http

Here’s a much better illustration. There are many voids, just as there are many superclusters. They are one of the large scale structures in the universe. https://en.m.wikipedia.org/wiki/Boötes_void#/media/File%3AGalaxy_superclusters_and_galaxy_voids.png https://en.m.wikipedia.org/wiki/Boötes_void#/media/File%3AGa...