Astronomers have long considered Abell 2029, located in the Virgo constellation, as one of the universe's most relaxed galaxy clusters. However, recent observations from the Chandra X-ray Observatory reveal that this cluster is still influenced by a major cosmic collision that occurred approximately 4 billion years ago. The study, led by Courtney Watson from Boston University, indicates that the cluster's gas is undergoing significant 'sloshing' motions, which may contribute to its thermal dynamics. The research highlights that despite its tranquil appearance, Abell 2029 is home to complex structures, including a 2 million light-year long sloshing spiral and shock waves resulting from past interactions. These findings suggest that the energy from the supermassive black hole at the center, IC 1101, along with the sloshing motions, plays a role in regulating gas cooling within the cluster. The study also points out that cooler gas pockets may be remnants of the ancient merger, further emphasizing the dynamic history of this seemingly calm galaxy cluster. Published in December 2025 in The Astrophysical Journal, this research sheds light on the intricate and often violent histories of galaxy clusters.