Way far away in Outer space, a Supernova exploded and the Extremely fast shock wave flew across solarsystems and galaxies to the birth of a new solor system
Close in vicinity was a stellar nursery minding its own business soon hit had by the same shock wave from the supernova pushing the nebulae away and creating planetesimals soon to become a new solarsystem
There are hundreds of thousands of minuscule solar systems as the one showed and over time they will grow into galaxies.
The growth of the billions of minuscule solar systems
Turns into millions of these and a lot of solar systems equal