Andromedia Milky Way Collision

The Andromeda–Milky Way collision is a galactic collision predicted to occur in roughly 3.75 billion years between two galaxies in the Local Group—the Milky Way and the Andromeda Galaxy. The stars involved are sufficiently far apart that it is improbable that any of them will individually collide, but some will be ejected from the resulting galaxy, nicknamed Milkdromeda. Read more for another video and additional information.

Simulations predict that Milkdromeda will look like a giant elliptical galaxy, but with a center showing less stellar density than current elliptical galaxies. It is, however, possible the resulting object will be a large disk galaxy, depending on the amount of remaining gas in the Milky Way and Andromeda