Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Andromeda Milky Way collision is a predicted galaxy collision that could possibly take place in approximately 4.5 billion years'' time between the two largest galaxies in the Local Group the Andromeda Galaxy and the Milky Way which contains EarthIt is often used as an example of the kind of phenomena associated with such collisions in simulations. As with all such collisions, it is unlikely that objects such as stars contained within each galaxy will actually collide, as galaxies are in fact very diffuse the nearest star to the Sun is in fact almost thirty million solar diameters away from the Earth. (If the sun were scaled to the size of an American quarter, 24.26 mm . If the collision occurs, the galaxies will likely merge into one larger galaxy.