There are 2 different events that cause the psychic drone event:
1) Happens when the ship crashes, and effects your colonists mood until you destroy the ship part.
2) Another event where a psychic drone effects your colonists mood, no crashed ship part to destroy. There is no way to stop this and it will last 1-2 days. You can focus on keeping your colonists happy to prevent them from going mad and leave the colony. A small flower garden helps alot, also basic needs like sleeping inside in a bed, eating from tables, seperate bedrooms, and so on..
Hope this helps.
1) Happens when the ship crashes, and effects your colonists mood until you destroy the ship part.
2) Another event where a psychic drone effects your colonists mood, no crashed ship part to destroy. There is no way to stop this and it will last 1-2 days. You can focus on keeping your colonists happy to prevent them from going mad and leave the colony. A small flower garden helps alot, also basic needs like sleeping inside in a bed, eating from tables, seperate bedrooms, and so on..
Hope this helps.