The nearest galaxy, Andromeda, is headed toward our Milky Way galaxy at 110 km per second (68 miles/sec). It'll look bigger & bigger in our skies before colliding with us in a few billion years, and when that happens, the two galaxies will be ripped across space by tidal forces.

http://bit.ly/2nFl04Z via /r/spaceporn http://bit.ly/32c91uJ