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Supernova winds blow galaxies into shape

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

3:20pm, January 13, 2010

View video of a simulation of dwarf galaxy formation.

After years of struggling to understand how to properly assemble a galaxy, astronomers have discovered that the answer is blowin’ in the wind. The supernova wind, that is.

New computer simulations show that winds generated by supernovas, which are the explosions of massive stars, can push stars out from the center of a dwarf galaxy. This simulation of supernova winds redistributes both ordinary matter and invisible dark matter in a way that almost perfectly matches o

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