Astronomy
The Cosmic Web: Large-Scale Structure of Galaxy Clusters and Superclusters
Quick fact
The largest known supercluster, the Hercules–Corona Borealis Great Wall, stretches about 10 billion light‑years across – nearly one‑tenth of the size of the observable universe!
Why this is interesting
You know galaxies are scattered across the sky, but did you know they form a gigantic, sponge‑like web that spans billions of light‑years? Why aren't they arranged randomly?