Rank #35
The universe is estimated to contain around 10^22 to 10^24 cosmic voids.
This description explores the vastness of the universe and its estimated number of cosmic voids. It is estimated that the universe contains between 10^22 and 10^24 cosmic voids, which are large empty regions of space. These voids are believed to be created by the gravitational pull of
From Wikipedia
This is a list of the largest cosmic structures so far discovered. The unit of measurement used is the light-year.