They are …!

As we began to intercept further communications from the so-called …, a startling discovery was made: they were speaking in a strange dialect of one of our own languages! Once the surprise of this encounter was overcome, communications were swiftly established, revealing them to be the ….

The command below will trigger the "They are …!" event in Stellaris:

When this event fires, you can choose between these 4 options:

• Rejoice - for we have found our lost kin!
• Hopefully our kinly ties will lead to friendship.
• Perhaps we should still attack them...
• Kinship doesn't imply friendship. Stay vigilant.