Outer Solar System in ITT universe

The outer fringes of Earth's Solar System are officially considered part of the Outer Solar System Province of the Imperium of the Terran Throne, though the authority of the four Imperial governors (see Government of Imperium of the Terran Throne) are largely confined to portions of the Kuiper Belt and Oort Cloud that make up the outer limits of the local solar system and whose ice-and-rock asteroids are a source of comets that sometimes fall further into the local solar syste.