The Astrolochamber

Reports from across the … confirm: the droning sirens have now dissipated. They ceased almost simultaneously, despite the vast distances between interstellar sites. Since that time, our research team has extrapolated models from the many constellations depicted on the dome's interior, which seems to have been used to make astrological predictions. The data they've gathered suggests that this facility is far older than the surrounding strata, by an order of epochs - with one notable exception: the chance discovery of a large dais immediately outside the dome suggests that at least one civilization has used this space comparatively recently. The dais was hewn from local stone, and is decorated with etchings we believe were used to translate the dome's outdated star charts for a galaxy arranged much as it is for us, now.

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

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

• Interesting.