Cluster galaxies are a group of galaxies that are gravitationally bound together and are found within galaxy clusters, which are some of the largest structures in the universe. These galaxies exhibit a range of properties, including various morphologies, star formation rates, and environmental influences due to their close proximity to each other. Research on cluster galaxies often focuses on understanding the formation and evolution of galaxies within these dense environments, as well as studying the interactions and processes that shape their properties. This can include studying the effects of galaxy mergers, interactions with the intracluster medium, and the role of dark matter in shaping the dynamics of cluster galaxies. Additionally, studying cluster galaxies can provide insights into the larger-scale structure of the universe, as the distribution and properties of galaxies within clusters can help astronomers better understand the overall structure and evolution of the universe.