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[[quoteright:350:[[Film/{{Soldier}} http://static.tvtropes.org/pmwiki/pub/images/soldiershipdumping_6521.png]]]]
[[caption-width-right:350:But where do they dump the planet when it's full?]]

In SpeculativeFiction, one will sometimes find that entire planets get used as interstellar landfills. Implicitly this means that it is [[CasualInterstellarTravel somehow worthwhile to launch refuse into space and take it to another planet, possibly one that is located in another solar system]], in order to dump it there, rather than [[HurlItIntoTheSun give it a push towards the nearest star]], dump it on a nearby worthless, uninhabitable rock, or just recycle the stuff (not to mention massive and cheap energy sources that make such launches worthwhile in the first place-- just getting into space in the first place is [[GravitySucks a lot harder than most people think]]). This is usually a consequence of the fact that SciFiWritersHaveNoSenseOfScale, treating interstellar space and the different planets like [[SpaceIsAnOcean a sea with islands in it]] rather than as an infinite void with tiny rocks and not-so-tiny furnaces separated from each other by immense distances, an environment where any man-made object would be so tiny as to be insignificant for most purposes.

In many cases, the landfill-planet will even be inhabitable, if only barely, for the convenience of the protagonists who will naturally end up spending time there at some point. Hobo cities built out of scrap optional.

For this trope to work at all, the setting must have ''very'' [[CasualInterstellarTravel Casual (and VERY CHEAP) Interstellar Travel.]] There are, however, ways to harden this trope: make the planet in question a useless dwarf planet in a nearby asteroid belt, Ceres-like (delta-v to reach such a planet could be really low), used only to dump garbage of space origin from the same system, and equipped with dirty recycling industries that make it more efficient to fling refuse there, rather than into the star. Rarely will it ever be a recycling planet of some kind, which would justify that moving massive amounts of junk there. For this trope in a smaller scale, see DownInTheDumps.

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!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* An episode of the ''{{Kirby}}'' [[KirbyOfTheStars anime]] involved aliens trying to turn Popstar into one of these, as part of Dedede paying off his debts. Key word: Trying.
* The ironically named Shangri-La colony from ''[[Anime/MobileSuitGundamZZ Gundam ZZ]]'' is mostly used as a scrapyard, collecting all the wreckage from the space wars that have been raging intermittently for the past 9 years. [[{{Joisey}} Unsurprisingly it's mostly populated by devil-may-care teens who dream of running away to a better world & lots of people with names ending in vowels.]]
* In the [[{{Animesque}} American manga]] ''[=EV=],'' the robotic alien Evie encounters seems to come from a world like this--specifically, a world [[ShoutOut based on]] Junkion from ''The {{Transformers}}.''
* In ''Anime/YuGiOhZEXAL'', Astral World is being destroyed... by humans intentionally dumping their garbage in it.
* An episode of ''{{Doraemon}}'' involves how littering is wrong. The gang travel to an Earth-like planet where littering is SeriousBusiness. Gian and Suneo got caught littering and sent work at a disposal site where all garbage is compressed into giant balls and illegally launched into orbit.
** This become a BrokenAesop due to a certain earlier episode. Nobita and Doraemon couldn't agree on how to split a dorayaki, so Doraemon lets out a gadget that will make something perpetually split into two while retaining the mass of the original (i.e. matter ''ex nihilo''). Greed gets the better of them, and they let at least 1 dorayaki to remain so they will always have a dorayaki to eat. However, they eventually reach their stomach's limit, and can't do anything about the [[GreyGoo infinitely splitting dorayaki]]. The solution? Round up all the affected dorayaki and launch them to outer space. Out of sight, out of mind... [[FridgeHorror at least for their lifetime]].
[[/folder]]

[[folder:Comics]]
* In issue #12 of the Marvel comic of ''Franchise/BattlestarGalactica'', Starbuck, Boomer, and Athena, on recon patrol, stumble across Scavenge World, a planet composed entirely of spare parts and inhabited by alien scavengers. They are captured and brought before the throne of Eurayle, the leader of the scavenger "family." Meanwhile, the Galactica is buffeted by a unexpected Cylon attack. The Cylons are momentarily averted, and the Fleet arrives at Scavenge World. Learning of the Galactica's situation, Eurayle makes a proposal - she will use her powers of the mind to free Commander Adama from the Memory Machine, if she can receive Lieutenant Starbuck in return. Starbuck eventually agrees to her offer. After the Cylons are defeated, Starbuck stays behind with her while the Colonial fleet moves on. Starbuck escapes from Scavenge World and returns to the fleet in issue #19. Eurayle pursues the fleet in issue #20, and Starbuck and Apollo meet with her. Starbuck agrees to fight her in a duel to the death. Eurayle wins, but after she leaves it is revealed that Starbuck faked his own death. The Scavenge World ship that Starbuck used to escape winds up giving the Colonials the coordinates to Earth, and the series ends with the fleet making a hyperjump to their final destination.
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[[folder:Film]]
* In the film ''Film/{{Soldier}}'' the main character had been dumped on a "landfill planet" because he was taken for dead.
* The Planet of Junk in ''The {{Franchise/Transformers}}: TheMovie'' is partly an example. While entirely comprised of junk, it is not a sphere so much as part of a crescent, implying that it is an artificial world. Whether the Planet of Junk was built by the Junkions is never actually explained.
* ''Franchise/StarWars'':
** Raxus Prime.
*** Along with its somewhat interchangeable counterparts Ord Mantell and Lotho Minor.
** ''Star Wars'' averts it with Coruscant. The planet's waste is recycled or composted where applicable, and the truly hazardous, irreclaimable garbage gets packed into containers and shot into orbit, where it gets a subsequent heave toward the sun.
** The planet Caamas was used as this after the planet was utterly devastated by orbital bombardment. This was something of a charitable endeavour, as the Caamasi were paid for the use of their (now mostly useless) planet.
* In ''WesternAnimation/WallE'', Earth itself has become a junk planet, and humanity has gone beyond the stars instead. Not a usual example of the trope, as Earth was not intentionally made such, but the visual aesthetic is the same.
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[[folder:Literature]]
* Creator/LarryNiven's short stoy "[[Literature/KnownSpace The Woman in Del Rey Crater]]" involves humanity dumping most of their nuclear waste into a single crater on the Moon. This is actually explained pretty well: the radioactive waste is hideously dangerous NOW, but we may find a way to use it at some later time. The Moon has no environment to damage, is very sparsely populated, and is relatively easy for this near-future society to reach, so it makes an excellent landfill until recycling technology catches up.
* ''Garbage World'' by Charles Pratt. An asteroid is used as the dumping ground for the trash of the pleasure asteroids.
* In the ''Series/RedDwarf'' novelizations, the Garbage World on which Lister ended up stranded turned out to be [[spoiler:[[EarthAllAlong Earth]], after being voted such in a EurovisionSongContest vote]].
* In one of the ''StarfleetCorpsOfEngineers'' stories, Rod Portlyn, a CorruptCorporateExecutive, turns the planet Phantas 61 into this.
[[/folder]]

[[folder:Live Action TV]]
* ''Series/{{Firefly}}'':
** The ExpandedUniverse has Beylix, essentially a giant storage yard for the United Reclamation company.
** Also, to some degree, Boros.
* The '70s sci-fi spoof ''Series/{{Quark}}'' was set on an interstellar garbage truck, presumably headed to one of these planets.
* In the "Shatnerverse" corner of ''Franchise/StarTrek'''s [[StarTrekExpandedUniverse Expanded Universe]], a resurrected Kirk gets dumped onto a Borg planet used as a holding station for refuse before it's recycled. This is partially explained in that the Borg canonically have easy interstellar "transwarp", but it's still a Class-M planet (inhabited, even) when any random location in space would do, and far less efficient than just recycling on-site.
* In a different version of this trope, the Malon in ''Series/StarTrekVoyager'' dump their dangerously radioactive "antimatter waste" (no, we don't know how that works either) in other regions of space, with less scrupulous captains not bothering to look for uninhabited ones. They do give a brief HandWave about why they can't just HurlItIntoTheSun, though; doing so often enough would apparently cause a star to ''explode''. Why they persist in using a power generation technique that produces so much appallingly hazardous waste as a byproduct is not explained, however. ''Voyager'' even tried to offer them waste-cleaning technology, but the one captain they tried this with cared more about his job than saving his society.
* The setting of a ''{{Lexx}}'' episode. The system's other planets were mutually annihilated by war, leaving a few hundred employees stranded on the landfill planet. [[HiveQueen It got worse.]]
* Gerry Anderson's ''{{Space 1999}}'' started with the moon being used as a nuclear waste dump.
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[[folder:Tabletop Games]]
* The darkly humorous ''TabletopGame/{{HoL}}'' (''Human Occupied Landfill'') takes place on one of these planets. It also takes the concept one step further and turns it into a landfill for people: the planet is the [[FunWithAcronyms Confederation Of World's]] only prison.
* ''{{Rifts}}''
** The ''Phase World'' setting has a unique justification: the planet in question is a deliberate social experiment to see what kind of civilization will emerge from such a place. It was set up by a MegaCorp that operated across three galaxies, and a few dimensions besides, and collected debts that were sometimes measured in ''planets''.
** The Rifts megaverse builder sourcebook also has an entire Landfill dimension. Seems when you can use magic to open Rifts and just dump your garbage it has to all go somewhere.
* The ''{{GURPS}}'' setting of ''InfiniteWorlds'' features Empty worlds, parallel Earths where no intelligent life has evolved, and some where no life has evolved at all. The latter are occasionally used as dumping grounds for hazardous waste. Nonetheless, Homeline's Greenpeace is still opposed to the idea.
* Given the sheer scale and variety of environments, it's almost impossible for ''TabletopGame/{{Warhammer 40000}}'' to NOT have a bunch of these. Interesting twist though: they weren't dedicated trash planets, but rather "hive worlds" that are so overpopulated, overdeveloped and over-mined that they're literally out of obtainable resources, the surface covered in barren rock, polluted (if not boiled-off/siphoned-away) seas and sprawling arcologies that house billions. Many of these worlds subsist on simply scrounging for material in sub-continent-sized piles of industrial refuse, and mass recycling of all water and organic products. Yes, that includes people. The lucky ones that reach this state are able to trade off millions of people a year (or month, or ''week'')) as labor or military in exchange for fresh sustenance, although they of course just squander it away just as quickly.
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[[folder:Video Games]]
* ''TotalAnnihilation'' had one of those planets, the moon of one of the factions' capital planet. Good thing about the junk, too. The moon was all mined out to cover the surface of said world in a metal shell, so the wreckage was the only source of war resources.
* New Junk City, the first level of ''VideoGame/EarthwormJim'', looks like one of these on the surface, [[spoiler:but [[AllThereInTheManual according to the game's documentation]] the level actually takes place in [[SubvertedTrope Texas]].]]
* A more reasonable version appears in ''VideoGame/MassEffect2''; the planet Korlus is used as a junkyard/recycling plant for old space-craft, and only those that were near a [[PortalNetwork Mass Relay]]. It's a dirty and dangerous task due to the various volatile chemicals released during the process. So it is less of a planetary junkyard, and more like a planet who's primary industry is ship-breaking.
* In ''EscapeVelocity'', you can take random missions to dump garbage on uninhabited worlds.
* Stage 2 of ''{{Gradius}} Gaiden'', named "Requiem for Revengers". Like the level name suggests, you'll meet the partially-functioning wreckage of [[NostalgiaLevel past Gradius bosses]] trapped in the junk.
* In ''{{Starcraft}} 2'', planet D-3794(aka, "Deadman's Rock") comes off as this. A lawless planet far outside of Dominion space, its surface is littered with debris and scrap, even near its two main settlements.
* Some of the planets in ''SuperMarioGalaxy'' and ''SuperMarioGalaxy2'' had planets covered in garbage in which the Gearmo living on it wants to get rid of it, and as a result he wants Mario to [[IncrediblyLamePun dispose]] the garbage by either blowing it up with Bob-ombs or burning it with the Fire Flower in order to give him a star as a reward.
* The ''{{Deponia}}'' series takes place entirely on a world like this.
* ''VideoGame/StarFox64'' has the planet Zoness. Formerly a popular vacation spot of the Lylat System, Andross turned the place into his own personal wastebasket, which noticeably horrifies your team-members. It also appeared as though the copious amounts of toxic waste also mutated the native life on the planet. The usual FridgeLogic about whether it's really more economic to haul all this junk to another planet instead of recycling it or something is averted because Andross was pretty clearly doing it [[ForTheEvulz just to be a dick.]]
** By ''VideoGame/StarFoxAssault'', if Zoness being a multiplayer map is any indication, it seems that a cleanup effort, first hinted in the Corneria stage, was successful.
[[/folder]]

[[folder:Web Comics]]
* ''FreighterTales'' is set on an interstellar sewer tank.
* In ''SluggyFreelance'', an alternate universe that's a mash-up of ''Franchise/StarTrek'', ''StarWars'', and ''Franchise/{{Alien}}'' regularly sends ships to a dimensional portal in deep space, where they dump toxic waste into whatever dimension happens to be on the other side.
[[/folder]]

[[folder:Web Original]]
* The Wiki/SCPFoundation seems to have found [[http://scp-wiki.wikidot.com/scp-364 one on Jupiter's moon Io.]]
[[/folder]]

[[folder:Western Animation]]
* Planet Dirt from ''InvaderZim'', one of [[{{Planetville}} many Irken planets]] dedicated to a [[PlanetOfHats single purpose]].
* Junkion in ''TransformersTheMovie'', and Goo (as well as Junkion) in ''WesternAnimation/TheTransformers'' (Season 3). Goo seems to be specifically purposed to catching floating garbage in space.
* The junkyard planet in the ''JusticeLeague'' episode "War World."
* ''WesternAnimation/{{Futurama}}'':
** One episode has the crew of ''Planet Express'' sent to destroy a ball of garbage that was previously thrown into orbit, ''Film/{{Armageddon}}''-style. The bomb, however, "misfires", and the Earth resorts to a different tactic: rolling up an identically-sized garbage ball and tossing it at the big ball of trash.
** Another episode has the characters disposing of electronic waste on "The Third World" (of the Antares system).
* ''MegasXLR'' features one in the episode "Junk In The Trunk", which on the surface looks quite similar to Junkion from ''Transformers''. May be coincidence, although given the number of {{Shout Out}}s to Transformers in the series...
[[/folder]]

[[folder:Real Life]]
* Real World example of the sort of thinking that leads to this trope: the Apollo astronauts jettisoned urine (they said it made a beautiful sight) but were required to store all feces and return it to Earth; apparently the idea of turds in lunar orbit was too much for the mission planners, despite the fact that such matter would quickly desiccate in the cold vacuum.
** Human fecal matter, being solid, is more dangerous than liquid matter. Even something as tiny as a screw is a deadly projectile in space, and larger turds can out mass screws significantly. And when it comes to the kinetics of space, it's the mass, not how "soft" or "hard" the object is, that determines its lethality. Besides, what person in their right minds wants "Died From A Flying Dookie" on their epitaph?
** It also makes you wonder: if and when space travel becomes significantly cheaper, can we get rid of garbage by shooting it into the sun? Or better yet, gigantic land-based mass drivers! Space Is Our Landfill!
*** Considering how many bits of old satellites and rockets are drifting around in orbit these days, some might say that's ''already'' the case.
*** Though this will probably be done with trash that forms in space, sooner or later (apart from the low orbits, where it's smarter just to direct them to burn in the atmosphere), it'll always be cheaper to bury your garbage in the ground, or recycle it, than to shoot it up from Earth's gravity well. Not to mention that if something goes wrong, there will be tons of potentially hazardous waste raining from the skies.
*** You could shoot the stuff entirely out of the solar system, into interstellar space, for about half of the energy it would take to drop it into the sun.
* The Soviets had plans to use their Energiya rocket to launch nuclear waste into a safe, planned solar orbit, but the plan came to nothing thanks to the fall of the USSR. This was less dangerous than it sounds, because the Soviets sited their launch facilities in such a remote and lightly-populated part of their territory that they probably had less chance of hitting some innocent bystander with a failed rocket than NASA did with flightpaths aimed over the sea. Of course these days we can recycle nuclear waste a lot more easily than we could in the late Eighties anyway...
* Having excessive amounts of space junk floating around is becoming a real concern for engineers. Generally, space garbage can either be burnt up in the atmosphere or tossed up into a graveyard orbit, which is beyond a geosynchronous orbit. This isn't a perfect solution, but requires less fuel in some cases, like for satellites in geosynchronous orbits. And that's where the [[Anime/{{Planetes}} space garbagemen come in]]...
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