Voord homeworld
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The Voord homeworld was destroyed by Caleera's psychic attack, (AUDIO: Scenes From Her Life) prior to the 1970s. The planet's destruction violated established history. It caused the surviving Voord to form a survival flotilla. (AUDIO: Beachhead)
After encountering the flotilla in Stegmoor, the Eighth Doctor visited the Voord homeworld and found chronon traces of Caleera's TARDIS. (AUDIO: Scenes From Her Life)
According to the Voord leader encountered by the First Doctor on Kandalinga, Marinus was the home planet of the Voord. (PROSE: The Fishmen of Kandalinga)