Galaxies, while vast and seemingly isolated, are not solitary entities. They exist within larger cosmic structures called galaxy groups and clusters. These gatherings, bound together by mutual gravitational attraction, can range from a few galaxies to thousands.


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Within these groups, galaxies interact, sometimes colliding and merging, shaping their evolution and influencing the formation of stars and planetary systems. These interactions, while often violent, are crucial for the dynamic interplay of galaxies within the universe.