https://phys.org/news/2019-03-hubble-dazzling-colliding-galaxies.html

Our own galaxy, the Milky Way, will undergo a similar collision in the future with our nearest galactic neighbor, the Andromeda galaxy. However, this is not expected to happen for around 4 billion years.

                                                            
                                    
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                                    Image: Hubble views two galaxies merging

                                                                                                        NASA's Goddard Space Flight Center