Galaxy collisions preview milky way's fate

Galactic pile-ups, ambitious goals and new insights. A new technology that helps to study the collisions, or mergers of other galaxies, could help our own, and in turn, could help us on our way to a deeper understanding of the entire universe. In this fascinating exploration of the world of colliding galaxies across cosmic time, Aaron S. Evans and Lee Armus, contemplate the history and future of existence through the lens of this mind-blowing field of research.