Because the density of galaxies is high within clusters, galaxy collisions occur. One such collision can be seen in the lower right of the image of the Virgo cluster below. Galaxies at the center ...
Live Science on MSN17d
Space photo of the week: Galaxies teeter toward collision in the sparkling depths of VirgoAn ultra-deep image from the National Science Foundation's Dark Energy Camera reveals a wide variety of galaxies in the unusual Antlia Cluster.
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