A sky was the visible part of a planet's atmosphere. The sky of Gallifrey was burnt orange at night. (TV: "A Desperate Venture") The sky of an Earth-like planet was green, (PROSE: The Sour Note) as was the sky of Arcopolis. (PROSE: The Eyeless) The sky of an Earth-like planet was purple. (PROSE: Follow the Phantoms) Retrieved from "https://tardis.fandom.com/wiki/Sky?oldid=2704456" Categories: Stubs Atmosphere Community content is available under CC-BY-SA unless otherwise noted.