Ion Trail

The … has picked up a signal from a discarded signal buoy belonging to one of our missing sublight probes in the … system. There is an ion trail leading away from the buoy on a trajectory towards another star, suggesting that someone has towed the probe there for unknown reasons.

The command below will trigger the "Ion Trail" event in Stellaris:

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

• Let us see where this trail leads.