"Galactic Spectacles: Hubble's Astonishing Discoveries"

NASA's Hubble Space Telescope has observed 12 interacting galaxies, revealing long tidal tails rich in gas, dust, and stars, along which 425 clusters of newborn stars have been identified. These clusters, containing up to 1 million blue, newborn stars each, are a result of galaxy collisions that trigger star formation rather than destruction. The discovery sheds light on the efficiency of cluster formation and provides insights into the early universe when galaxy collisions were more frequent.