Qo'noS is the main planet of the Klingon Empire. All institutions of the empire are located here, there is also an imperial palace. The planet has a single supercontinent and a huge ocean, thanks to the tilted axis, wild weather with rapid changes prevails. Qo'noS suffered a major catastrophe when a huge power plant exploded much of the Klingon Empire exploded on Praxis. The shock wave after the explosion seriously damaged the planet's ozone layer. It seemed that she would have to be evacuated or abandoned altogether. This event led to the loosening of relations between the Klingon Empire and the Federation and the signing of the Khitomer Accords.