Yar is the second planet from the sun in the Centauri system, United Empire of Earth (UEE). Located close to the inner boundary of Centauri's green zone, Yar's environment is hot and arid, and sparsely populated. The planet's most visible feature is a vast barren region known as the Red Desert. A variety of research and mining outposts were established on Yar after precious minerals were discovered there in the early 29th century; however, most were abandoned after the larger deposits were depleted in the early 2910s. A scattered population of Humans made up of remaining miners and their descendants remain on Yar.