While astronomers estimate that the Andromeda galaxy will collide with our own Milky Way galaxy 8 billion years from now, they now believe that another collision will happen even sooner.
원문출처 : https://www.cnn.com/2019/01/12/world/galactic-collision-milky-way/index.html
원문출처 : https://www.cnn.com/2019/01/12/world/galactic-collision-milky-way/index.html