Andromeda Galaxy (the Andromeda Galaxy is one of the closest Galaxy to us, scientists even believe that someday the Andromeda Galaxy will make a collision with our Milky way and completely destroy both of the Galaxies). I learned this on How The Universe
The Andromeda Galaxy - It is 2 million light years away from us.so what we see now is how it appeared 2 million years ago. It will collide with our Milky Way in 2 billions years from now - the two galaxies are heading towards each other at a rate of 430
Andromeda Galaxy: nearest neighboring major galaxy to our "Milky Way Galaxy". Due to begin a collision with our Milky Way galaxy in about billion years, Andromeda is million light years away from Earth (at the speed of light).