New Earth (Doctor Who) New Earth (Doctor Who) "New Earth" is the first episode of the second series of the British science fiction television series "Doctor Who". It was first broadcast on BBC One on 15 April 2006. The episode is set five billion years in the future on the planet New Earth, a planet humanity settled on following the destruction of the Earth in the 2005 episode "The End of the World". In the episode, the alien time traveller the Tenth Doctor (David Tennant), his travelling companion Rose Tyler (Billie Piper), and their old enemy Lady Cassandra (Zoë Wanamaker) uncover many artificially-grown humans
Companion (Doctor Who) "what constitutes a Doctor Who companion is no longer clear". During the Doctor's latest incarnations, his primary companions, such as Rose Tyler and Martha Jones, have fulfilled a distinct dramatic role, more significant than other, less-prominent TARDIS travellers such as Adam, Jack, and Mickey. The British press referred to Martha as the "first ethnic minority companion in the 43-year television history of "Doctor Who"" and the "first black assistant", despite the presence of Mickey Smith in the previous season—including several episodes in which he travelled in the TARDIS with the Doctor. Similarly, some characters who appear to qualify as companions