The Lost Worlds of Planet Earth The Lost Worlds of Planet Earth "The Lost Worlds of Planet Earth" is the ninth episode of the American documentary television series "". It premiered on May 4, 2014 on Fox, and aired on May 5, 2014 on National Geographic Channel. The episode was directed by Brannon Braga, written by Ann Druyan and Steven Soter, and featured the voice of Amanda Seyfried as geologist Marie Tharp. The episode explores the history of the Earth starting with the period of the Late Heavy Bombardment, approximately "3.8 to 4.1 Billion years ago during which the Moon, Mercury, Venus, Earth and were battered
Planet Earth (2006 TV series) several other countries. International broadcasters carrying Planet Earth include Australia on ABC and GEM, Canada on CBC and CTV, New Zealand on Prime, the U.S. on Discovery Channel and Velocity and Science and Animal Planet and Destination America and BBC America. <onlyinclude></onlyinclude> The episodes are each an hour in length, comprising the main programme and a 10-minute featurette called "Planet Earth Diaries", which details the filming of a particular event. In the UK, "Planet Earth" was split into two parts, broadcast in spring and autumn 2006. The first five episodes premiered on BBC One at 9:00 pm on Sundays, beginning