Banished

The malignant entity which attempted to breach our universe near … has been banished back into its own realm. Only time will tell if its influence has been sufficiently weakened to keep it there for good. We are detecting some kind of anomalous residual energy that must have been left behind by the dimensional rifts the creature opened. Studying this energy more closely could potentially lead to scientific breakthroughs.

The command below will trigger the "Banished" event in Stellaris:

When this event fires, you can choose between the following option:

• Let us see what will come of it.