Davros Both Skaro and the Imperial Dalek mothership are apparently destroyed (in the future) when the Seventh Doctor tricks Davros into using the Time Lord artefact known as the Hand of Omega which makes Skaro's Sun go supernova. However, a Dalek on the bridge of Davros' ship reports that the Emperor's escape pod is being launched and a white light is seen speeding away from the ship moments before its destruction, leaving a clear route to bring Davros back in the future. During the revived series, Davros was referred to in the episode "Dalek" (2005) by the Ninth Doctor (Christopher Eccleston),
Planet Earth (2006 TV series) whilst some international versions used alternative narrators. The series has eleven episodes, each of which features a global overview of a different biome or habitat on Earth. At the end of each fifty-minute episode, a ten-minute featurette takes a behind-the-scenes look at the challenges of filming the series. Ten years later, the BBC announced a six-part sequel had been commissioned, titled "Planet Earth II", the first television series produced by the BBC in Ultra-high-definition (4K). David Attenborough returned as narrator and presenter. In 2001 the BBC broadcast "The Blue Planet", a series on the natural history of the world's oceans.