returns

… returned from … journey inside one of the Astral Rifts. Without warning, … simply appeared aboard one of our science ships and proceeded to return to work as normal. However, it quickly became obvious that … changed: caught somehow between time, … age is indeterminable. Perhaps as a result, … also gained some new abilities. … developed a strong aversion to any sort of instructional manual, and has been observed operating with a much higher degree of improvisation.

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

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

• Fascinating.

Stellaris events fire in chains — one event leads to the next. Here is how returns (astral_rift.840) connects.