The Very Large Survey Telescope captures collisions in young galaxy cluster

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Image uploaded from a quicklink 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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When last this cluster appeared as it does in the ... by John Sanchez Jr. on Thursday, Mar 8, 2012 at 7:58:42 AM
There's no cause to "feel insignificantly tiny" du... by Kyle McDermott on Friday, Mar 9, 2012 at 12:15:52 AM