Rogue Moonbase

The mysteries of … have been revealed! A detailed survey revealed that the moon is slightly lopsided, with the far side of the moon having a disproportionately large share of the total mass. The reason for this, we believe, is that … once orbited another planet which was destroyed in a cataclysmic explosion. The extra thickness on the far side of … is because that was the side which faced its original planet, the extra material is part of the mass of that planet which was blown into …, knocking it out of orbit and sending it, eventually, into the orbit of …. We speculate that the planet was destroyed by a weapon, or perhaps just an attempt to create a power source based on Dark Matter, as there are high concentrations of it in the planetary material coating the far side of the moon.

The command below will trigger the "Rogue Moonbase" event in Stellaris:

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

• Astounding.
  • Engineering: +None to None