Artist's impression of the young Milky Way colliding with another galaxy about 10 billion years ago. Credit: Vasily Belokov, based on an image by Juan Carlos Muñoz/ESO, licensed under CC BY-NC-SA.

An artist's impression of the young Milky Way colliding with another galaxy about 10 billion years ago.
Credit: Vasily Belokov, based on an image by Juan Carlos Muñoz/ESO, licensed under CC BY-NC-SA.