Milky way and Andromeda are colliding !!!

The collision of our Milky Way galaxy with the Andromeda galaxy has already begun. The outer edges of both galaxies are already merging. The merger of the two spiral galaxies will give rise to an elliptical galaxy. The Milky Way has an estimated 100 to 300 billion stars with a mass of about 1,500 billion solar masses, while the Andromeda galaxy has a mass of around 800 billion solar masses. These two galaxies are by far the heaviest in the Local Group.