Editing Galaxy cluster (section)

==Notable galaxy clusters==
[[File:07-Laniakea_(LofE07240).png|thumb|The [[Laniakea supercluster]] with many [[galaxy clusters]]]]

{{Main|List of galaxy groups and clusters}}Notable galaxy clusters in the relatively nearby universe include the [[Virgo Cluster]], [[Fornax Cluster]], [[Hercules Cluster]], and the [[Coma Cluster]]. A very large aggregation of galaxies known as the [[Great Attractor]], dominated by the [[Norma Cluster]], is massive enough to affect the [[Hubble's law|local expansion of the Universe]]. Notable galaxy clusters in the distant, high-redshift universe include [[SPT-CL J0546-5345]] and [[SPT-CL J2106-5844]], the most massive galaxy clusters found in the early Universe. In the last few decades, they are also found to be relevant sites of particle acceleration, a feature that has been discovered by observing non-thermal diffuse radio emissions, such as [[radio halo]]s and [[radio relics]]. Using the [[Chandra X-ray Observatory]], structures such as cold fronts and [[shock waves in astrophysics|shock waves]] have also been found in many galaxy clusters.
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|| [[Virgo Cluster]]
|| The nearest massive galaxy cluster
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|| [[Norma Cluster]]
|| The cluster at the heart of the [[Great Attractor]]
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|| [[Bullet Cluster]]
|| A cluster merger with the first observed separation between dark matter and normal matter
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|colspan=99| {{small| This lists some of the most notable clusters; for more clusters, see the list article. }}
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