Terra Nova

Terra Nova was an alternate Earth created by the entity known as Iam. The Sixth Doctor and the Rani were trapped on Terra Nova during its Roman Empire era. The Rani had tried to manipulate the three children of Terra Nova's Cleopatra VII, but failed. (PROSE: State of Change)

Terra Nova was also the name of the space satellite featured in The Ark in Space (broadcast from 25 January to 15 February 1975), in which The Fourth Doctor, Sarah Jane Smith, and Harry Sulivan confront the Wirrm Queen and the cryogenically preserved survivors of a devestated Earth.