Andromeda Galaxy Approaching Our Milky Way

The Andromeda galaxy is currently moving towards our Milky Way and the two galaxies are bound to merge / collide in about 2.5 billion years.

Current distance between the Andromeda Galaxy and our Sun:
In kilometers:  
In light years:  
In parsec:  

The Andromeda Galaxy is already occupying a space in the sky larger than the moon. However, it is so faint that most of it cannot be seen. It must be a spectacular, albeit scary, sight when the two galaxies merge!

This image, courtesy of NASA Images, shows the angular
diameter of the Andromeda Galaxy and the Moon as seen
from Earth. The brightness of Andromeda is exaggerated
to create the desired effect. Source:
Andromeda Galaxy (extra bright) and the Moon