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Astronomy

The Large-Scale Structure of Galaxy Clusters and Superclusters

Quick fact

The largest known structure in the observable universe is the Hercules–Corona Borealis Great Wall, a supercluster complex stretching over 10 billion light-years across.

Why this is interesting

Look up at a clear night sky and you see countless stars—but did you know that even the galaxies themselves are arranged into a vast, web-like pattern spanning billions of light-years?