Level 5 planet
From Tardis Wiki, the free Doctor Who reference
A level 5 planet is a primitive type of planet with hardly any knowledge of Alien life. Earth was a level 5 planet.
References
- The phrase 'level 5 planet' was first mentioned by a Slitheen (SJA: Revenge of the Slitheen).
- It was then mentioned by Captain Hardaker (DW: Voyage of the Damned) and then by The Doctor. (DW: Partners in Crime) by The Doctor.
