We don’t know how the wormhole was created, we aren’t even sure if it was a natural occurence or not. What we do know is it’s stable, and it leads to a largely uninhabited galaxy. This galaxy is up for grabs, though you are not the only one. You will have to compete with others to colonize newly discovered systems as efficiently as possible. Build your colonies and plan ahead so they provide the resources you need to expand your influence. Keep an eye out for interesting anomalies to research and make the best of any setback or opportunity that presents itself. There’s allot of work ahead for you, pioneer.
Now go out and Take The Galaxy!