Quarantined World

… was once a large Irassian colony, showing signs of both industrial development and terraforming. As on other Irassian worlds, the fossilized remains tell a harrowing tale - the population rapidly succumbed to the Javorian Pox, and there appears to have been widespread panic in all of the …'s major settlements. There is also an unusually large amount of debris in orbit, possibly the remnants of a battle.

The command below will trigger the "Quarantined World" event in Stellaris:

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

• Fascinating.
  • Start special project: Orbital Blockade