Astronomers using data from NASA's Chandra X-ray Observatory have determined the origin of an unusual radio formation that has earned the informal name 'Treble Clef' due to its resemblance to the musical symbol of a treble clef. Researchers established that this structure likely formed as a result of a powerful energy outburst from a supermassive black hole, which was followed by a collision of galaxy clusters. Such interactions represent some of the most energetic events in the Universe since the Big Bang and play an important role in the evolution of large-scale cosmic structures. Analysis of Chandra's X-ray data combined with radio observations allowed scientists to reconstruct the sequence of events that led to the formation of this unique shape. The black hole outburst created cavities in the hot gas surrounding the cluster, and the subsequent merger with another galaxy cluster distorted and reshaped these structures, giving them the characteristic curved appearance resembling a musical symbol. This discovery provides scientists with new insights into how interactions between black holes and collisions of galaxy clusters affect the distribution of hot gas and magnetic fields in intergalactic space. Such studies help astronomers better understand the processes of growth and evolution of the largest gravitationally bound structures in the Universe—galaxy clusters—as well as the role of active galactic nuclei in shaping their surrounding environment.