The Tenth Planet of malevolent cyborgs that became a recurring adversary in later "Doctor Who" stories. The "tenth planet" in the title makes reference to a fictional lost planet in Earth's Solar System; at the time of production, the Solar System was generally held to consist of nine planets, prior to the redesignation of Pluto as a minor planet. "The Tenth Planet" is an incomplete "Doctor Who" serial – one of many serials that were affected by the BBC's policy of wiping archived programmes in the 1960s and 70s. Only three of the four episodes are currently held in the BBC archives; the
Terra: The Nature of Our World previous podcasts. LifeOnTERRA's ("TERRA: The Nature of Our World's") website http://www.lifeonterra.com/ was launched in October 2006. This site features a new biweekly episode ready for viewing and downloading, along with its 8 seasons of documentary offerings. All videos are offered as QuickTime (.m4v). The current website was launched in September 2013 and includes many features from the previous website, with a fresh new look. The website was designed and built by Jeff Reed. Hosting for the Videos is provided by Vimeo. As - TERRA: The Nature of Our World-www.lifeonterra.com is the winner of two 2013 WEBBY awards, the People's Voice