It's the loneliest galaxy in the known Universe, and we can scientifically predict its ultimate fate. The dark matter forms a large, diffuse halo of mass, while the normal matter sinks to the center, colliding with other normal matter particles and collapsing in the shortest dimension first. The normal matter "pancakes," which is the scientific term for "goes splat," and forms a disk that starts rotating. All of the collapsed objects, which is where the normal matter will overwhelmingly wind up, will gravitationally interact. Even without normal matter to absorb or emit radiation, the skeletal structure of the galaxy — the dark matter and neutrinos that don't interact with photons — will still persist.

Source: Forbes December 18, 2019 06:56 UTC