The Banshee system, discovered by Adaliz Dayan in 2317, is an unusual planetary system in the United Empire of Earth (UEE), consisting of a pulsar, a mesoplanet, two terrestrial planets, and one ice giant. Its star is not luminous enough for life to develop on the surfaces of any of its planets. However, the third planet from the sun, Lorona, supports an underground settlement populous enough to hold a seat in the UEE Senate. From the 24th to the 26th century, travel to the system was severely restricted by the United Planets of Earth (UPE) until the landmark Minto vs UPE court case that nullified the government's travel ban and ruled that full systems could not be declared off limits.