Four galaxies interacting and merging together (N-body simulation)

The simulation shows four identical galaxies interacting gravitationally, exchanging stars and finally merging into a single elliptical galaxy. Each galaxy initially contains 500k particles. Computed with OpenSPH https://pavelsevecek.github.io Join the Discord server:   / discord   Simulation file: https://www.dropbox.com/s/6le7arr3vea... Original video: https://www.dropbox.com/s/zekri53mfy7...