How the night sky will change as the Milky Way and Andromeda galaxies collide over the next 4 billion years A description of what’s happening in the images above: 1st image: Present day. 2nd Image: In 1.9 billion years the disk of the approaching Andromeda galaxy is noticeably larger. 3rd image: In 2.47 billion years Andromeda fills the field of view. 4th image: In 3.84 billion years the sky is ablaze with new star formation. 5th image: In 3.9 billion years, star formation continues. 6th image:

10K views · 161 reactions | The Milky Way Is Going to Collide —...