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 Award and a WEBBY Award in the Green category. As - TERRA: The Nature of Our World—lifeonterra.com was a finalist at the 2008 Wildscreen Film Festival in Bristol in the "New Media" Category. As - TERRA: The Nature of Our World—lifeonterra.com was a Finalist at the 2007 SxSW Interactive Festival in the Student Category. As - TERRA: The Nature of Our World-lifeonterra.com won the 2007 Webby for Student Online Film and Video ². As - TERRA: The Nature of Our World—lifeoneterra.com was a finalist at the 2007 Jackson Hole Wildlife Film Festival in the 'Best use of New Media Category'.