Junk planet

A junk planet was a type of planet that was covered in garbage and scrap, often used deliberately to store Waste.

Known junk planets
The gas giant Belannia XXI was used as a waste dump. (PROSE: Beltempest)

The planet Endpoint was used as a dumping ground by the civilisations inhabiting its star system. This polluted its atmosphere and sea, making them acidic. After the system became caught in the crossfire of an interstellar war the survivors took refuge on Endpoint, using debris that fell onto the planet to create makeshift cities on stilts above the sea. Hope, Triumph and Persistence were among these cities. (PROSE: Hope)

The DC Mining Company once made a deal with the Travellers of Epajaenda, allowing the company to use the planet's resources and eventually turn it into a dump. At the last moment, the company's founder Abraham Derris-Cuthbertson rescinded the dumping, honouring the terms of his contract with the Travellers. (PROSE: Last Rites)

Kolkokron was a junk planet orbiting a dying star. (AUDIO: Time in Office) The Fifth Doctor and Tegan Jovanka left the Gravis there. (TV: Frontios)

Seffilun 27 and Seffilun 59 were both junk planets located within a junk galaxy. (TV: The Tsuranga Conundrum)