Multimedia >>>Multimedia HD Tour Andromeda Galaxy
The Milky Way galaxy and Andromeda galaxy are on a collision course! In about 3 billion years, the two galaxies will collide.
Then over a span of 1 billion years or so after a very complex gravitational dance, they will merge to form an
elliptical galaxy.... Colliding Galaxies Create Active Galactic Nuclei! A super computer simuation