The Very Large Survey Telescope captures collisions in young galaxy clusterQuicklink submitted by Kyle McDermott Permalink
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|The Hercules galaxy cluster (Abell 2151) lies about 500 million light-years away in the constellation Hercules. It is unlike other nearby galactic assemblies in many ways. As well as being rather irregular in shape, it contains a wide variety of galaxy types, particularly young, star-forming spiral galaxies, and there are no giant elliptical galaxies in sight... The Hercules galaxy cluster is believed to be a collection of at least three small clusters and groups of galaxies that are currently being assembled into a larger structure. Furthermore, the cluster itself is merging with other large clusters to form a galaxy supercluster. These giant collections of clusters are some of the largest structures in the universe. The [VST is] ideal for studying the outskirts of galaxy clusters where the poorly understood interactions between between clusters are taking place.|
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