A planetary core was the innermost portion of a planet.
Earth's core[[edit] | [edit source]]
When Earth formed billions of years ago, the Secret Heart became its core. (TV: The Runaway Bride [+]Loading...["The Runaway Bride (TV story)"])
Around 40,000 BC, the Euterpians planned to use Earth's core to refuel their mothership, but it was destroyed by solar flares before they could do so. (PROSE: Invasion of the Cat-People [+]Loading...["Invasion of the Cat-People (novel)"])
In 1984, the Dominators attempted to acquire Earth's core to fuel their fleet, but were defeated by UNIT. (COMIC: The Fires Down Below [+]Loading...["The Fires Down Below (comic story)"])
In 2007, the Torchwood Institute drilled a borehole to Earth's core under the Thames Flood Barrier in an attempt to free the Secret Heart. (TV: The Runaway Bride [+]Loading...["The Runaway Bride (TV story)"])
During their invasion of Earth, the Daleks attempted to remove the core and replace it with a power system that would allow them to pilot the planet anywhere in the universe, but they were defeated by the First Doctor. (TV: The Dalek Invasion of Earth [+]Loading...["The Dalek Invasion of Earth (TV story)"]) During their second invasion thirty years later, they again attempted to remove the core and for the same purpose, but they were defeated by the Eighth Doctor. (AUDIO: Lucie Miller [+]Loading...["Lucie Miller (audio story)"], To the Death [+]Loading...["To the Death (audio story)"])
Iris Wildthyme visited the Earth's core. While there, she encountered reptile people and a "dashing old gentleman". (PROSE: From Wildthyme with Love [+]Loading...["From Wildthyme with Love (novel)"])
Cores of other planets[[edit] | [edit source]]
Earth's was not the only planetary core the Daleks wanted. They mined the core of Arkheon in an attempt to acquire the Arkheon Threshold (PROSE: Prisoner of the Daleks [+]Loading...["Prisoner of the Daleks (novel)"]) and mined the core of Galacton to fuel the Dalek Seventh Fleet. (PROSE: Mission to Galacton [+]Loading...["Mission to Galacton (short story)"]) During the Last Great Time War, the Daleks attempted to replace every planetary core in the Null Zone with hyperdrives so they could fire all the planets at Gallifrey. (AUDIO: The Heart of the Battle [+]Loading...["The Heart of the Battle (audio story)"])
The Kastrians' power source was drawn from the core of the planet Kastria. This was one of Eldrad's gifts to his people. (TV: The Hand of Fear [+]Loading...["The Hand of Fear (TV story)"])
The core of Lucifer was made of heavy elements which were the remains of the native Angels. (PROSE: Lucifer Rising [+]Loading...["Lucifer Rising (novel)"])
The core of Spiridon was an allotrope of ice. (TV: Planet of the Daleks [+]Loading...["Planet of the Daleks (TV story)"])
Among the exhibits in the Pentaquoteque Gallery were paintings made from metal from a giant gas planet's core and held in stasis. (COMIC: The Arts in Space [+]Loading...["The Arts in Space (comic story)"])
The Omega Arsenal on Gallifrey was kept near the planet's core. (PROSE: A Brief History of Time Lords [+]Loading...["A Brief History of Time Lords (novel)"])
The Skaro of N-Space had an icy core, known as the Ice Heart of Skaro. (COMIC: The Dalek Trap [+]Loading...["The Dalek Trap (comic story)"]) In the "unforeseeable future", the Daleks had lifts in Zone X that led to the very heart of their world. When Skaro imploded in this age, the First Doctor and Susan Foreman briefly sought to take refuge at Skaro's core to ride out the collapse. (COMIC: The Test of Time [+]Loading...["The Test of Time (comic story)"]) In the Unbound Universe, Skaro's core held a vast store of dimensional energy, making the planet a target of the Quatch. (AUDIO: Masters of War [+]Loading...["Masters of War (audio story)"])
At the core of Alvega resided the Controller of the Amarylls. When the Daleks invaded the planet, the natives' mastery of the environment proved too much for the invaders. A single Dalek flying saucer burrowed underground with the intent to destroy the Controller. When the last Dalek drone of its crew did so, Alvega's core collapsed, destroying the planet. (COMIC: The Amaryll Challenge [+]Loading...["The Amaryll Challenge (comic story)"])