Will The Milky Way Collide With Another Galaxy?

collisions between galaxies are a natural part of galaxy formation, and it is likely that every galaxy,

When the collision between Andromeda and the Milky Way occurs will depend on how fast the Andromeda Galaxy is moving towards us

 the Andromeda Galaxy is the closest large galaxy to the Milky Way, it is still 2.5 million light years away,

 the two galaxies approach one another, the gravitational pull between them will distort their shapes and stretch out their spiral arms.

A large number of stars will likely be ejected from both galaxies. Most of the other stars will likely be flung to a different position altogether. 

the Milky Way and Andromeda will fully merge together and become a single, much larger galaxy.

They will no longer possess their spiral shapes, and instead, will likely form into an elliptical galaxy

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