Their research puts more pressure on the International Astronomical Union (IAU) to classify the object as the 10th planet in our solar system. "UB313 is decidedly larger than Pluto," said ...

Doctor Who (1963–1996) Season 4, The Tenth Planet: Episode 2 The Tenth Planet: Part 2 Earth's energy is being drained away by the new planet, Mondas, and faces destruction… ...

Doctor Who (1963–1996) — Season 4, The Tenth Planet: Episode 1 Landing at the South Pole the travellers find a new planet is disrupting a space shot. BBC One ...