Supernova winds blow galaxies into shape

Simulations of exploding stars show how matter is pushed around during star formation

View video of a simulation of dwarf galaxy formation.

MATCH MADE IN HEAVEN A simulation of the formation of a dwarf galaxy (various stages illustrated) incorporates both dark matter and supernova winds. The resulting dwarf galaxy shape matches observed features of actual dwarf galaxies, the most common type of galaxy in the vicinity of the Milky Way.