A supergalaxy is a large structure that resembles a galaxy, but itself made up of galaxies. They are always elliptical in shape, and contain a vast number of galaxies; dwarf supergalaxies contain around 500,000 galaxies, normal supergalaxies contain around 50 million, and large supergalaxies (sometimes made from every galaxy in an entire universe) can contain over 50 billion.

Supergalaxies often appear as the end state of a supercluster in the late universe when the cluster has mostly coalesced.

They can be found inside turtlies.

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