Professor Aaron Evans and co-author Lee Armus discuss what might happen when the Milky Way meets the Andromeda Galaxy in this month's Scientific American: https://www.scientificamerican.com/article/galaxy-collisions-preview-milky-ways-fate/

Image: Forecasted future: An illustration shows a possible view of the merging Milky Way–Andromeda system as seen from Pluto, which may get tossed to the galaxy's outskirts, along with the solar system. Credit: Ron Miller