Tahlboor, a world situated within the Thanium sector, was classified as a planet. This planet served as the native world for the Tahlbooreans, a species characterized by a societal split into two warring castes: the Troobs and the Hobors. Long ago, a bygone Tahlboorean society erected the Sky cannon, a formidable armament that ultimately led to the downfall of their own society and the obliteration of one of the planet's two moons.