Possible perp found in mystery of Milky Way’s missing galaxy pals
Supernova turmoil could have blasted away galactic building materials
![satellite galaxies](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/06/062316_cc_galaxy-formation_free.jpg?fit=860%2C460&ssl=1)
VIRTUAL GALAXY New simulations show that supernovas whittle away at the sea of dark matter surrounding our galaxy (left), leaving only a few blobs that are massive enough (circled) to create satellite galaxies. The image on the right, from the same simulation, shows where stars end up forming.
The FIRE project