Supercluster
Gravitationally-unbound collection of galaxy groups and clusters
Nº Q27521 ★★★
Rare · Knowledge
Supercluster
Gravitationally-unbound collection of galaxy groups and clusters
A supercluster is a large group of smaller galaxy clusters or galaxy groups; they are among the largest known structures in the universe. The Milky Way is part of the Local Group (containing more than 54 galaxies), part of the Laniakea Supercluster, contained within the larger Pisces–Cetus Supercluster Complex.
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From Wikipedia
A supercluster is a large group of smaller galaxy clusters or galaxy groups; they are among the largest known structures in the universe. The Milky Way is part of the Local Group (containing more than 54 galaxies), part of the Laniakea Supercluster, contained within the larger Pisces–Cetus Supercluster Complex. The large size and low density of superclusters means that most of them, unlike clusters, expand with the Hubble expansion. The number of superclusters in the observable universe is estimated to be 10 million.
Text: Wikipédia, CC BY-SA 4.0. · Image: Richard Powell (CC BY-SA 2.5) ·
