8) Behind the Scenes
Dark Matter has probably been around from the very beginning, and its own structure has evolved from a homogeneous clump into a universal web, with a network of filaments and nodes that have the ability to collect and compress ordinary matter. This is because there is something Dark Matter does interact with – Gravity.
The very first atoms formed were attracted towards the nodes in the Dark Matter web. Vast quantities of Hydrogen and Helium (that’s pretty much all there was at this point) fell inwards, into the blueprint of bones for the skeleton. The pressure of gravity increased as the atoms bundled together into gigantic clouds, and they became denser, and hotter, until the forces acting upon them made them start to swirl.