Outer Exerbia

At the frontier of the cosmos.
 
Cosmic voids are vast, empty regions in the universe where galaxies are sparse and matter is thinly spread. These immense spaces, often spanning hundreds of millions of light-years, reveal the large-scale structure of the cosmos, highlighting the contrasting density of galaxy clusters. Studying these voids helps astronomers understand how galaxies are distributed, offering insights into the expansion of the universe and the forces that shape its evolution.