Galaxy groups are collections of galaxies that are gravitationally bound together, typically containing a few to tens of galaxies. These groups are smaller than galaxy clusters, which can contain hundreds to thousands of galaxies. Galaxy groups are important for studying the evolution of galaxies and the large-scale structure of the universe. Researchers study galaxy groups to understand how galaxies interact with each other, how they form and evolve, and how the distribution of galaxies in the universe is influenced by dark matter and other cosmological forces. By studying galaxy groups, astronomers can gain insights into the processes that shape the dynamics and morphology of galaxies in the universe.