History Main / ColonizedSolarSystem

There is also a planned construction on a rotating [[StarshipLuxurious space resort]] orbiting the Earth called the Voyager Hotel to become open to the public 2027. Venus could also be colonized in the next decade, with NASA already having some plans to set up a station there with concept art from Project H.A.V.O.C (High Altitude Venus Operational Concept). However, due to the surface of Venus being having an extreme amount of pressure, these colonies would have to be real life [[FloatingContinent floating cities]] that would be suspended theoretically using hot air balloon-like helium suspension sources. There are also plans for after Mars and Venus, with the next prime targets for human habitation being Jupiter’s moons Callisto, Europa and other Jovian-based colonies that will be centered around finding extraterrestrial life on the moons of Jupiter. Several locations within Jupiter space expected to be colonized around 2045 according to the planned future HOPE (Human Outer Planet Exploration) mission documents.
NASA will extend human habitats even further into the solar system with a possible colony on Titan, the moon of Saturn. NASA space colonies on worlds with lower gravity will utilize the gravity-creating effect of circle-shaped rotating rooms. NASA might even allow humans to go further than our Solar System with their planned [[RingWorldPlanet Stanford Torus generation ship-luxury colony]] hybrid interstellar drift [[PlanetSpaceship spaceship worlds]]. Cryogenic preservation is very important within NASAs colonization projects as it could allow humans to travel between planets in subjectively quick time.

* NASA’s plans of space colonization within the 2020’s decades sound like something out of science fiction. With mining colonies on the Moon and terraformed dome bases on Mars interconnected with an underground transportation system.

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[-[[caption-width-right:350:Once man's giant leap, now just another tourist trap.]]-]

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* Being a MassiveMultiplayerCrossover AlternateHistory, in ''ComicBook/TheLeagueOfExtraordinaryGentlemen'' humanity reverse engineered the Martian technology after the ''Literature/WarOfTheWorlds'' invasion. By 2010 they had colonies on the Moon, Mars and Venus. Given that various old PlanetaryRomance stories are canon in this universe, most of the solar system had breathable air and [[SolarSystemNeighbors native aliens]].
* In ''ComicBook/JudgeDredd'', humanity maintains several space colonies even after the Atomic Wars of 2070. Several megacities are present on the moon, such as Luna City One; there's mention of colonies on Mars, a judicial {{penal colony}} on Titan, and deep-space missile bases on Pluto. There's also a colony on the newly-discovered planet Hestia, which orbits the sun at 90 degrees from the rest of the Solar System.

* ''Literature/BehindTheSandratHoax'': While their exact location in the galaxy is unclear, the story takes place on two planets called New Earth and New Venus, indicating a great degree of interstellar travel.
* ''Literature/TheDispossessed'' has an anarchist moon colony. Except it's not our moon; it orbits a planet in a distant solar system.
%%The story takes place in 2057, with human bases on the Moon, Mars, Mercury, Venus, and Jupiter and Saturn's moons. %%What story?%%
* ''Literature/DownInTheDark'': The story takes place in 2057, with human bases on the Moon, Mars, Mercury, Venus, and Jupiter and Saturn's moons

* Creator/IsaacAsimov and Creator/JanetAsimov's ''Literature/TheNorbyChronicles'': The Solar Federation (alternatively, the [[HumansByAnyOtherName Terran Federation]]) has colonized the Lunar State, Mars, and built at least one space station for Space Command. Travel between colonies is [[CasualInterplanetaryTravel relatively quick]], facilitated by [[CrewofOne scoutships]] that can make the trip in one week and [[{{Teleportation}} matter transmitters]] that can make it in less than a day. They are trying to crack FTL with the invention of a [[SubspaceOrHyperspace hyperdrive]].
* Creator/IsaacAsimov and Creator/RobertSilverberg's ''Literature/ThePositronicMan'': Colonies from Ganymede and the rings of {{UsefulNotes/Saturn}} are mentioned, WorldBuilding the [[TheFuture distant future]] of humanity by [[AdaptationExpansion further developing]] the details of colonization in the solar system.
* In ''[[Literature/TauCetiAgendaSeries One Day on Mars]]'', Mars has been colonized long enough for people to have a particular phenotype (tall, pale, black-haired).
* In ''Literature/ThePentagonWar'', prior to the main story, Mars was colonized by the Western powers on its southern hemisphere and by China on its northern hemisphere. The two colonies quickly grew to each others' borders and had a war, which was squelched when the World Federal Government stepped in and subjugated ''both'' sides.
* The ''Literature/RedMarsTrilogy'' tells the story of the colonization, {{terraform}}ing and [[spoiler:deadly conflicts]] of Mars over several generations. Several other planets and satellites are shown with small colonies and research stations on it, such as Miranda, one of the moons of Uranus.

* In ''Literature/{{Spin}}'', Mars is terraformed and colonized by Earth. Due to the YearOutsideHourInside premise, the Martian colony becomes technologically advanced enough to develop interstellar travel (of a sort) and longevity treatments within the lifetime of the protagonists.
* In Creator/PiersAnthony's ''Bio of a Space Tyrant'' series, the entire solar system has been colonized in a contrived way that results in the solar system having the same political systems as twentieth-century Earth on a larger scale: for instance, the United States of Jupiter is basically the USA, while the Earth itself has become the equivalent of India (with the Moon as Sri Lanka).
* In ''Literature/TheExpanse'' the former colonies on Mars have become an independent military power in a cold war with Earth. Both planets exploit the Belt, whose inhabitants have formed their own unique culture.
* In the ''Literature/RevelationSpaceSeries'', Mars was colonized by the augmented Conjoiners and Europa was colonized by the democratic anarchists. The Conjoiners fled the system after the [[NoTranshumanismAllowed Coalition for Neural Purity]] attacked them and the Demarchists moved their operations to the Epsilon Eridani system. The Solar System was dethroned as the hub of human civilization when Earth underwent a second ice age, and by the time most of the stories take place it is a backwater in comparison to Epsilon Eridani.
* In ''Literature/ArrivalsFromTheDark'', we gets to see the progress of this, even though the main focus is on humanity's interactions with aliens. The first novel ''Invasion'' takes place in 2088 and has humans establishing bases (even domed cities) on the Moon and small outposts on Mars and dwarf planets. [[SpaceNavy USF]] even trains its SpaceFighter pilots on Mars and Venus. The Outer Solar System is still unsettled at that point. After the failed AlienInvasion and the resulting influx of ImportedAlienPhlebotinum, ArtificialGravity allows for quick and easy interplanetary travel, while the FTL drive allows for other stars to be explored. The human presence on Mars steadily expands, and the planet is eventually terraformed and holds a sizable population (200 million) by 2352. It's stated the Mars served as the testbed for many of the terraforming technologies and techniques later used to settle barely-habitable worlds. The Asteroid Belt is home to numerous [[AsteroidMiners mining]] operations, as well as shipyards for the SpaceNavy (why put shipyards far away from the source of the materials?). Even Pluto has a presence in the form of a long-range monitoring station and a [[SpaceElves Lo'ona Aeo]] mercenary recruiting base, and Mercury is basically one giant solar power plant, supplying the entire system.
* In the ''Literature/HyperionCantos'', Mars was colonized a long time ago and is actually the only human-inhabited planet in the Solar System (Earth having become EarthThatWas due to a NegativeSpaceWedgie--[[spoiler:or so everyone thinks]]). Mars is the headquarters of FORCE, the military of the Hegemony, and is inhabited by the Palestinians. Yes, the Palestinians, who [[UsefulNotes/ArabIsraeliConflict won their independence]] at some point but very shortly thereafter lost it in the crossfire of an unrelated Middle Eastern nuclear war.

* The prequel novels to ''Literature/EndersGame'' reveal that Luna was already a bustling metropolis by the time of the [[BugWar First Invasion]]. Other planets aren't really settled, although [[AsteroidMiners asteroid mining]] is in full force by both corporations and independent mining clans. The arrival of the [[InsectoidAliens Formics]] puts a stop to colonization, especially after the discovery that an even larger Formic armada is on the way. All resources are put towards building an [[SpaceNavy International Fleet]] to repel the advanced enemy.

* The first novel of ''Literature/TheHistoryOfTheGalaxy'' series has a MegaCorp work to terraform Mars, while another MegaCorp seeks to fill it with [[MegaCity mega cities]] (they're rivals in that regard: the first one wants a green Mars, while the other one just wants it to be a {{Planetville}}). However, both efforts are derailed when the second corporation's careless digging accidentally unleashes a huge underground burst of nanodust, which clogs every machine on Mars and makes either terraforming or construction impossible for a long time. Fortunately, around this time, humanity discovers [[SubspaceOrHyperspace hypersphere]], allowing other star systems to be visited and settled. However, Earth remains overpopulated and low on resources, dependent on AsteroidMiners who are living it up and using their economic status to lord over the homeworld. Eventually, the new president of Earth has had enough of this and secretly converts a bunch of transport ships into warships, which he uses to attack and capture the entire system, declaring the formation of the [[TheEmpire Terran Alliance]].
* In ''Literature/TheLostFleet'', Mars was the first colonized planet. Unfortunately, it's a case of GoneHorriblyWrong, as the original settlers wanted it to be entirely independent of Earth. The result is a planet run by gangs. Even centuries later, the three nations on Mars are still run by gangs. In the prequel ''Literature/TheGenesisFleet'' series, everyone treats Martians with the same disdain due to the planet being a WretchedHive. One character expends a lot of effort to lose her past as a "Red": she moves to Earth, gets rid of her Martian accent, and tells everyone she's from Albuquerque.
* In ''Literature/TheKillingStar'', humanity has spread out across much of the Solar System. There are research outposts on Mars, the Moon, Gandymede, Miranda, and Triton; huge solar-powered antimatter factories on Mercury built by self-replicating robots, space colonies and hollowed-out asteroids that have become whole worlds unto themselves, including Ceres. Nearly all of them are wiped out by a series of [[KineticWeaponsAreJustBetter relativistic bombings]] launched by an alien civilization, leaving only a few scattered survivors. [[DownerBeginning And that's just in the first few chapters.]]
* ''Literature/TheMartian'': A significantly [[DownplayedTrope downplayed example]], since it's just a one-man potato patch, but Mark Watney claims that, according to the University of Chicago, a location is officially colonised once someone has planted crops there. Thus Mark has technically colonised Mars.
---> In your ''face'', Neil Armstrong!
* ''Literature/AlienInASmallTown'' is set in a future when the solar system has been colonized, ''but not only by humans.'' In exchange for their help introducing us to interstellar cultures, the alien Jan have been permitted to colonize Jupiter's moon Callisto.
* ''Literature/{{Semiosis}}'': A disastrous failed attempt to {{Terraform}} Mars is mentioned in passing. The book itself is set in a better-planned colony on an extrasolar planet.

* Creator/JohnVarley's Literature/EightWorlds setting features a Solar System where SufficientlyAdvancedAliens have kicked the human race off Earth (and colonized Jupiter), but humans have colonized not only Earth's moon, but Mercury, Pluto, and just about every other large moon or planet with a solid surface in between.

* The ''Series/RedDwarf'' was a Neptune-to-Earth ore frieghter, before the radiation leak that killed all but one of the crew and forced the AI to take the ship out of the system. It's also mentioned a few times that Rimmer grew up on Io. Tie-in novel ''[[Literature/RedDwarf Infinity Welcomes Careful Drivers]]'' opens with Lister stranded on Saturn's moon Mimas thanks to [[AlcoholInducedIdiocy a series of bad decisions made while very drunk]], and joining the ''Red Dwarf'''s crew because he thought it'd be a quick and self-financing way to get home. To say that didn't work out very well for him is to put it very mildly indeed.
* In ''Franchise/StarTrek'', Mars was colonized between the events of the movie ''[[Film/StarTrekFirstContact First Contact]]'' and the series ''[[Series/StarTrekEnterprise Enterprise]]''. The Utopia Planitia Fleet Yards, where the [[Series/StarTrekTheNextGeneration Enterprise-D]] was built, are in synchronous orbit above the Utopia Planitia region on the Martian surface. (This would have to be a powered orbit, as Utopia Planitia isn't on the equator.) Other parts of the solar system are also colonized. Venus has terraforming stations on it, the Moon is so developed that you can see some of the settlements from Earth's surface, and there were other research stations and such throughout the solar system. Humans weren't the only ones to do this, since the Klingons had a mining station on Praxis, one of their homeworld's moons (before it blew up), Neelix was from Rinax, one of the Talaxian homeworld's moons, Bajor had at least one moon that was inhabitable and had about 50 refugees from Cardassian oppression flee there, and there are many other examples.

* ''Series/StarCops'': There are bases on both UsefulNotes/TheMoon and UsefulNotes/{{Mars}} in 2027.

* ''TabletopGame/BattleTech'': Earth's solar system was colonized in the distant past of the game's setting. By the time of the [[GoldenAge Star League]], there were permanent colonies on Mars, the Earth's moon, Venus, and on several large space stations. Since then, they mostly got left alone and ignored, but during the Word of Blake Jihad they suffered heavy damage- Venus's colonies were rendered uninhabitable due to the conflict and had to be abandoned.

* ''TabletopGame/EclipsePhase'' takes place after Earth is ravaged by a Singularity-event gone wrong and the survivors fled to the fledgling off-world colonies via BrainUploading. The Moon is the center of the slightly conservative and decaying Lunar-Lagrange Alliance. Mars is partially terraformed (Ruster morphs can breathe) and the capital of the corporatocratic Planetary Consortium. Venus has several aerostat habitats in the upper atmosphere that were Consortium but most seceded to form the Morningstar Constellation. The Asteroid Belt is settled by a mix of corporates and anarchists. Jupiter's moons are mostly the domain of the bioconservative and fascistic Jovian Republic. And Titan and some of Saturn's other moons have the technosocialist Titanian Commonwealth.
* In the backstory of ''TabletopGame/HcSvntDracones'' a MegaCorp colonized Mars just before Earth fell victim to a nuclear war. 700 years later Mars, Venus, and Ganymede have been terraformed by [=MarsCo=] while Europa is host to the bioengineered monstrosities of Transcendent Technologies Inc.
* ''TabletopGame/TerraformingMars'', a BoardGame with a strong SF theme, has human expansion into the solar system as part of the background, even aside from the fact that the point of the game is, well, WhatItSaysOnTheTin — especially once you add some of the {{Expansion Pack}}s, which introduce parallel efforts on Venus and trade with the outer system.

* ''Franchise/MassEffect'' subverts this somewhat, as the discovery of [[FasterThanLightTravel FTL travel]] very early in their spacefaring history, resulted in the Sol system being mostly forgotten as humanity began expanding beyond the Mass Relay. This is because humans decided that expanding to other worlds beyond the Relay would be easier than taking the time to develop the worlds in Sol. Most of what is in the solar system are simple research, mining, or utility stations that at most only have populations of a couple hundred. Even Mars which had a booming population prior to the discovery of the Prothean archives and is implied to have been on the verge of being terraformed for greater habitability, was turned into a forgotten backwater after the Archives were discovered. The largest non-Earth population is on the moon, but even then its only a couple of small cities whose combined population is only a few thousand, compared to all of the extrasolar colonies who have populations in the millions.
* ''VideoGame/CommandAndConquerRedAlert2'': The ending of the Soviet campaign in ''Yuri's Revenge'' implies that the Soviet Union will use the space travel technology that they took from Yuri to expand communism across the solar system.
* ''VideoGame/MillenniumReturnToEarth'' starts with the Moon and Mars having bases. Then Earth gets {{Colony Drop}}ped by an asteroid, leaving those two outposts as the only remnants of humanity. The more militant Martian colonists declare themselves the true heirs to Earth and warn their Lunar cousins to stay on the Moon or face the consequences. Obviously, you, as leader of the Lunar colony, have no intention of doing that. The game involves sending out probes to the planets and moons of the Solar System in order to establish mining bases at viable sites. Those smaller colonies lack any manufacturing facilities. The Martians conduct periodic raids on the Moon and the other bases, necessitating that each base maintain AttackDrones and/or {{Kill Sat}}s for protection (they can only be built on the Moon and must be then shipped to the other planets). The mining bases' only purpose is to provide raw materials to the Lunar colony to build and research stuff. The eventual goal is to take the fight to Mars, destroy the colony there, and establish your own. Also, near the end of the game, some of the colonies start to mutate due to the local conditions. By the end, most of them will declare independence. The final task is to build a terraforming device that turn Earth back into a habitable world. By the time of the sequel, taking place 800 years later, most of the colonies have died out.
* The primary setting of ''VideoGame/CallofDutyInfiniteWarfare'' is a colonized Solar System, though it begins in Geneva, Switzerland on Earth during the United Nations Space Alliance Fleet Week. Parts of the system are ceded to the Settlement Defense Front while others remain in the hands of the UNSA.
* While not a Solar System example, the main gameplay of ''VideoGame/AlienLegacy'' involves colonizing a star system strangely similar to ours. The colonists are cut off from Earth by both space and time (presumably, centuries, if not millennia, have passed after the ship's launch). The game allows you to establish multiple colonies on suitable sites on all planet types but gas giants (large asteroids are also colonizable). You can also build multiple space stations around planets, moons, and asteroids, although they're never going to be fully self-sufficient due to the inability to mine for raw materials. Another twist is that your colony ship [[LightspeedLeapfrog isn't the first to arrive to the system]], except, instead of this trope, all you find are {{Ghost Planet}}s with cryptic messages about a disaster of some kind.
* The first act of ''VideoGame/HaegemoniaLegionsOfIron'' takes place in this setting, as wormhole travel hasn't yet been discovered. It involves a war between Earth and the Solar System colonies (mainly Mars). By that point, both sides are about equal in terms of technology and industry.
* In ''VideoGame/ConquestFrontierWars'', the Solar System is completely settled, and one mission involves defending it from a massed [[InsectoidAliens Mantis]] invasion.
* In the ''Franchise/{{Halo}}'' universe, humanity has a presence nearly everywhere in the solar system: Mars has been terraformed and is a major population center, there are gas mines and colonies on the gas giants and their moons (though Uranus is something of a sparse backwater), Earth's Moon has a strong colony and an OCS, and even Mercury - which is too hot for proper colonization - has solar farms and antimatter production. Though, humanity ''tried'' to terraform & colonize [[DeathWorld Venus]] but failed, presumably since the planet is just too horrendously deadly for even interstellar humanity to tame.
* ''VideoGame/{{Warframe}}'' takes place across the Solar System, or Origin as characters call it, dotted with {{Corp|orateWarfare}}us outposts, [[TheEmpire Grineer]] bases, [[PlayerCharacter Tenno]] {{space station}}s and a few hapless civilian colonies living in fear of the former two.
* ''VideoGame/{{Redout}}'' takes place in this setting, as the Earth was rendered increasingly uninhabitable by climate change, forcing most of the population to relocate to colonies across the solar system. The game actually subverted this trope at launch, as the initial four track locations were all on Earth, with only Mars getting more than a token mention in the backstory as one of the birthplaces of the SRRL. Played straight later on as more tracks were released, taking place on Mars, the Moon, Europa, a space station above Neptune, and the fictional planetoid of [=P-AR219=]. Notably, the difficulties of this are shown - a failed attempt to terraform the Moon created an enormous fissure, while the planned colony on Europa never even took off, as evidenced by the abandoned structures left lying around the tracks there.
* In ''VideoGame/OffworldTradingCompany'' the player runs a mining and manufacturing corporation supplying commodities to a colony on Mars. Expansions add Ceres, Io, and Europa as alternate locations.
* In ''VideoGame/SierraOps'', Mars has been colonized for three hundred years, and 14% of humanity lives on space colonies located at Earth’s Lagrange points. There’s also Mondshire, a city on the surface of the Moon, and the game begins on a space station orbiting Venus.
* ''VideoGame/{{Destiny}}'' takes place AfterTheEnd of a GoldenAge in which humanity had thriving cities from Mercury all the way to the moons of Saturn. Having an EnigmaticEmpoweringEntity magically terraform all the rocky planets and some of the moons made colonization easier, but humanity made a point of settling some of the totally inhospitable ones as well. However, the Collapse saw humanity pushed back to a [[LastBastion single city]] on Earth, and despite significant recovery since then, re-settling its lost colonies remains a pipe dream.
* In the ''VideoGame/WolfensteinTheNewOrder'' universe, Nazis constructed a lunar base in the early 1950s, which serves as both a militaristic and research based small-city size complex guarded by [[SpaceMarines Space Nazi Marines]]. There is also a developing colony on the planet Venus, which is split into parts, A [[FloatingContinent floating cloud city]], of luxurious and commercial interplanetary habitation, Adolf Hitler himself hiding out there, and a ground base on the planet used for scientific research. Venus bases are also well guarded by space Nazis, however, unlike Marines on Luna, travel to the surface of Venus requires suits that allow humans to remain in one piece despite the enormous amount of pressure.

* ''Webcomic/AMiracleOfScience'': Here, humanity spread to Mars, Venus, the Moon, Ganymede and Callisto, with Mars turning isolationist and weird (until [[HiveMind it]] got lonely), Venus falling to a corrupt dictatorship, and all save the Moon have been terraformed.

* ''Webcomic/MareInternum'' is set on Mars at the beginning of its colonization.

* ''Literature/JunctionPoint'': By the 2050's, there are small colonies and scientific outposts on the Moon, Mars, and satellites of outer planets.
* ''Literature/MagicMetahumansMartiansAndMushroomCloudsAnAlternateColdWar'': By the 1980s, [[{{Magitek}} both scientific and magical understanding]] has reached a point that the US and USSR are able to start setting up colonies on Venus, the Moon, and Mars.

* In the ''WesternAnimation/ExoSquad'' universe, Venus has been {{terraform|ing}}ed, Mars has been colonized by the Neo-Sapiens, and the Jovian and Saturnian moons were used for military and mining purposes. Even the trans-Neptunian planet Chaos is occupied by a secret pirate base.

** In the outer reaches of the solar system, Neptune is where [[BadSanta Robot Santa]] has his base of operations, and Pluto is being used as a penguin reserve.

* In the ''VideoGame/{{WolfensteinII:Colossus}}'' universe, Nazis constructed a lunar base in the early 1950s, which serves as both a militaristic and research based small-city size complex guarded by [[SpaceMarines Space Nazi Marines]]. There is also a developing colony on the planet Venus, which is split into parts, A [[FloatingContinent floating cloud city]], of luxurious and commercial interplanetary habitation, Adolf Hitler himself hiding out there, and a ground base on the planet used for scientific research. Venus bases are also well guarded by space Nazis, however, unlike Marines on Luna, travel to the surface of Venus requires suits that allow humans to remain in one piece despite the enormous amount of pressure.

* In the ''VideoGame/{{Wolfenstein}}'' universe, Nazis constructed a lunar base in the early 1950s, which serves as both a militaristic and research based small-city size complex guarded by [[SpaceMarines Space Nazi Marines]]. There is also a colony on Venus, which is split into parts, A ground base and a [[FloatingContinent floating city]], of luxury and commercial space residence, Adolf Hitler himself hiding out there. There is also a ground base on the planet used for scientific research. Venus bases are also well guarded by space Nazis.

** Manga/MobileSuitGundamSeedAstray: specifically the sequel to Astray, ''DELTA Astray'', which follows Mars colonists, similar to the above mentioned Frozen Teardrop.

** The Universal Century featured Lagrange Point colonies and cities on The Moon. The sidestory ''F90'' featured a base on Mars (granted, it was a [[Main/TheRemnant Neo-Zeon]] base, that was destroyed at the end of the story), and [[Manga/MobileSuitCrossboneGundam Crossbone]] reveals that the Jovian System has been settled.
** Anime/MobileSuitGundamWing: It’s established in ''Endless Waltz'' that colonization of Mars is ongoing, the ''Frozen Teardrop'' spinoff/sequel is set on said Mars colony several decades after the Ned of the series.
** Anime/GundamReconguistaInG: There is a colonized Moon, as well as a series of space colonies around Venus called "Venus Globe". Additionally, since this is a DistantSequel to the above mentioned Universal Century, there may also be Jupiter colonies.
** Anime/MobileSuitGundamIronBloodedOrphans takes the cake with regards to this, featuring colonies on the moon, Mars, and Jupiter. As well as being the first mainline Gundam series to be set outside the Earth Sphere (The above mentioned Crossbone and Frozen Teardrop Being LooseCanon spinoffs).
** [[Main/ZigzaggedTrope Zig-Zagged]] in Anime/MobileSuitGundamAge, [[spoiler: the villainous faction, originally believed to be aliens, are in-fact an ''abandoned'' Mars colony, left behind due to a disease, that have come back for revenge. By the end of the series, the disease has been cured, and Mars colonization restarted.]]

* Elon Musk-owned space company Space-X is currently working on a project to send humans back to the moon to stay for a permanent colony and to send humans to Mars for the first time and also create a colony base there as well. This project, working alongside NASA, is set to carry out these actions by the end of the 2020’s decade as of the time this was written. This project could set up humans on both worlds by 2024. After this, Elon Musk then wants to set up colonies on the moons of Jupiter’s moon Europa, Saturn’s moon Enceladus, Kuiper Belt Objects, and even a transport depot settlement on Pluto to work as a base for materials collected from long-term manned interstellar voyages into the Oort Cloud. These interstellar ships could potentially have [[OrionDrive nuclear pulse propulsion drives]] if stable antimatter engines, which Elon Musk says he would prefer, aren’t invented in the near future.

There is also a planned construction on a rotating [[StarshipLuxurious space resort]] orbiting the Earth called the Voyager Hotel to become open to the public 2027. Venus could also be colonized in the next decade, with NASA already having some plans to set up a station there with concept art from Project H.A.V.O.C (High Altitude Venus Operational Concept). However, due to the surface of Venus being having an extreme amount of pressure, these colonies would have to be real life [[FloatingContinent floating cities]] that would be suspended theoretically using hot air balloon-like suspension sources. There are also plans for after Mars and Venus, with the next prime targets for human habitation being Jupiter’s moons Callisto and Europa and other Jovian-based colonies that will be centered around finding extraterrestrial life on the moons of Jupiter. Several locations within Jupiter space expected to be colonized around 2045 according to the planned future HOPE (Human Outer Planet Exploration) mission documents.
NASA will extend human habitats even further into the solar system with a possible colony on Titan, the moon of Saturn. NASA space colonies on worlds with lower gravity will utilize the gravity-creating effect of circle-shaped rotating rooms. NASA might even allow humans to go further than our Solar System with their planned [[RingWorldPlanet Stanford Torus generation ship-luxury colony]] hybrid interstellar drift [[PlanetSpaceship spaceship worlds]]. Cryogenic preservation is very important within the colonization projects as it could allow humans to travel between planets in subjectively quick time.

* ''Anime/CowboyBebop'' has the solar system at large undergoing this due to the Earth itself being nigh uninhabitable. With worlds like Mars being the most developed and prosperous. Colonization of Venus, on the other hand, is still a work in progress and relies largely on flying cities... which is a surprisingly realistic depiction of what it would take to terraform Venus.

NASA will extend human habitats even further into the solar system with a possible colony on Titan, the moon of Saturn. NASA space colonies on worlds with lower gravity will utilize the gravity-creating effect of circle-shaped rotating rooms. NASA might even allow humans to go further than our Solar System with their planned [[RingWorldPlanet Stanford Torus generation ship-luxury colony]] hybrid interstellar drift [[SpaceshipPlanet spaceship worlds]]. Cryogenic preservation is very important within the colonization projects as it could allow humans to travel between planets in subjectively quick time.

NASA will extend human habitats even further into the solar system with a possible colony on Titan, the moon of Saturn. NASA space colonies on worlds with lower gravity will utilize the gravity-creating effect of circle-shaped rotating rooms. NASA might even allow humans to go further than our Solar System with their planned [[RingWorldPlanet Stanford Torus generation ship-luxury colony hybrid interstellar drift [[SpaceshipPlanet spaceship worlds]]. Cryogenic preservation is very important within the colonization projects as it could allow humans to travel between planets in subjectively quick time.

There is also a planned construction on a rotating [[LuxuryStarship space resort]] orbiting the Earth called the Voyager Hotel to become open to the public 2027. Venus could also be colonized in the next decade, with NASA already having some plans to set up a station there with concept art from Project H.A.V.O.C (High Altitude Venus Operational Concept). However, due to the surface of Venus being having an extreme amount of pressure, these colonies would have to be real life [[FloatingContinent floating cities]] that would be suspended theoretically using hot air balloon-like suspension sources. There are also plans for after Mars and Venus, with the next prime targets for human habitation being Jupiter’s moons Callisto and Europa and other Jovian-based colonies that will be centered around finding extraterrestrial life on the moons of Jupiter. Several locations within Jupiter space expected to be colonized around 2045 according to the planned future HOPE (Human Outer Planet Exploration) mission documents.

NASA will extend human habitats even further into the solar system with a possible colony on Titan, the moon of Saturn.

* NASA’s plans of space colonization within the 2020’s decades sound like something out of science fiction. With mining colonies on the Moon and terraformed dome bases on Mars interconnected with an underground transportation system. Venus could also be colonized in the next decade, with NASA already having some plans to set up a station there with concept art from Project H.A.V.O.C (High Altitude Venus Operational Concept). However, due to the surface of Venus being having an extreme amount of pressure, these colonies would have to be real life [[FloatingContinent floating cities]] that would be suspended theoretically using hot air balloon-like suspension sources. There are also plans for after Mars and Venus, with the next prime targets for human habitation being Jupiter’s moons Callisto and Europa and other Jovian-based colonies that will be centered around finding extraterrestrial life on the moons of Jupiter. It is expected to be colonized around 2045 according to mission documents. It is also worth mentioning NASA plans to construct an space resort orbiting the Earth called the Voyager Hotel in 2027.

* Jeff Bezos-founded space travel company Blue Origin has set a goal to get humans back on the moon, but this time for good, with their Shepard rockets serving as transit vehicles between Earth and lunar mining colonies. Blue Origin has also commented they want to participate in human colonization of Mars, but Jeff Bezos’ main goal to build giant cylinders with habitable Earth-like environments that would be based the Lagrange points of the Earth-moon system and in the asteroid belt, with supplies being brought back to these stations from mining bases on asteroids.

* NASA’s plans of space colonization within the 2020’s decades sound like something out of science fiction. With mining colonies on the Moon and terraformed dome bases on Mars interconnected with an underground transportation system. Venus could also be colonized in the next decade, with NASA already having some plans to set up a station there. However, due to the surface of Venus being having an extreme amount of pressure, these colonies would have to be real life [[FloatingContinent floating city]] that would be suspended theoretically using hot air balloon-like suspension sources. There are also plans for after Mars and Venus, with the next prime target being Callisto, one of the moons of Jupiter, that will have a colony to be based around finding extraterrestrial life on the moons of Jupiter. It is expected to be colonized around 2045 according to mission documents. It is also worth mentioning NASA plans to construct an space resort orbiting the Earth called the Voyager Hotel in 2027.

* Jeff Bezos-founded space travel company Blue Origin has set a goal to get humans back on the moon, but this time for good, with their Shepard rockets serving as transit vehicles between Earth and lunar colonies.

* Elon Musk-owned space company Space-X is currently working on a project to send humans back to the moon to stay for a permanent colony and to send humans to Mars for the first time and also create a colony base there as well. This project, working alongside NASA, is set to carry out these actions by the end of the 2020’s decade as of the time this was written. This project could set up humans on both worlds by 2024. After this, Elon Musk then wants to set up colonies on the moons of Jupiter’s moon Europa, Saturn’s moon Enceladus, Kuiper Belt Objects, and even a transport depot settlement on Pluto to work as a base for long-term interstellar voyages into the Oort Cloud.

* Jeff Bezos founded space travel company Blue Origin has set a goal to get humans back on the moon, but this time for good, with their Shepard rockets as transit between Earth and lunar colonies.

* In the ''VideoGame/{{Wolfenstein}}'' universe, Nazis constructed a lunar base in the early 1950s, which serves as both a militaristic and research based small-city size complex guarded by [[SpaceMarines Space Nazi Marines]]. There is also a colony on Venus, which is split into parts, A ground base and a [[FloatingContinent floating city]], and appears more of a place of luxury and residence, Adolf Hitler himself hiding out there. Venus bases are as well guarded by space Nazis. There is also a potential Mars colony mentioned in the series, but never shown.

* In ''TabletopGame/{{Warhammer 40000}}'', the entire Solar system has been colonized several millennia ago.
Mars is the primary Forge World of the [[MachineWorship Adeptus Mechanicus]], while Jupiter hosts the Imperium's largest shipyards and Titan is home to the [[DemonSlaying Grey Knights]].

* In ''TabletopGame/{{Warhammer 40000}}'' Mars is the primary Forge World of the Adeptus Mechanicus, while Jupiter hosts the Imperium's largest shipyards and Titan is home to the Grey Knights.

** Anime/MobileSuitGundamWing: While it doesn't play into the anime at all, the ''Frozen Teardrop'' spinoff/sequel is set on a Mars colony that had been there since before the events of the anime.

* In the ''Franchise/{{Wolfenstein}}''universe, Nazis constructed a lunar base in the early 1950s, which serves as both a militaristic and research based small-city size complex guarded by [[SpaceMarines Space Nazi Marines]]. There is also a colony on Venus, which is split into parts, A ground base and a [[FloatingContinent floating city]], and appears more of a place of luxury and residence, Adolf Hitler himself hiding out there. Venus bases are as well guarded by space Nazis. There is also a potential Mars colony mentioned in the series, but never shown.

* In the ''Franchise/{Wolfenstein}}''universe, Nazis constructed a lunar base in the early 1950s, which serves as both a militaristic and research based small-city size complex guarded by [[SpaceMarines Space Nazi Marines]]. There is also a colony on Venus, which is split into parts, A ground base and a [[FloatingContinent floating city]], and appears more of a place of luxury and residence, Adolf Hitler himself hiding out there. Venus bases are as well guarded by space Nazis. There is also a potential Mars colony mentioned in the series, but never shown.

* ''Anime/CowboyBebop'' has the solar system at large undergoing this due to the Earth itself being nigh uninhabitable. With worlds like Mars being the most developed and prosperous. Colonization of Venus, on the other hand, is still a work in progress and relies largely on flying cities...which is a surprisingly realistic depiction of what it would take to terraform Venus.

** [[Main/ZigzaggedTrope Zig-Zagged]] in Anime/MobileSuitGundamAge, [[spoiler: the villainous faction, originally believed to be aliens, are in-fact an ''abandoned'' Mars colony, left behind due to a disease, that have come back for revenge. By the end of the series, the disease has been cured, and Mars colonisation restarted.]]

* ''Anime/MartianSuccessorNadesico'' starts with the destruction of a colony on Mars by invading "Jovian Lizards." [[spoiler: The Jovians are in fact humans, the descendents of an earlier generation of lunar colonists driven into exile.]]

* In most continuities the distant future of the ''ComicBook/{{Legion of Super-Heroes}}'' is mostly made up of humans who colonized other worlds and over time evolved powers on each of them. For instance Saturn Girl is from Saturn's moon Titan where all the descendants of the original colonists have developed telepathy.
* Being a MassiveMultiplayerCrossover AlternateHistory, in ''ComicBook/TheLeagueOfExtraordinaryGentlemen'' humanity reverse engineered the martian technology after the ''Literature/WarOfTheWorlds'' invasion. By 2010 they had colonies on the Moon, Mars and Venus. Given that various old planetary romance stories are canon in this universe, most of the solar system had breathable air and native aliens.
* In ''ComicBook/JudgeDredd'', humanity maintains several space colonies even after the Atomic Wars of 2070. Several megacities are present on the moon, such as Luna City One; there's mention of colonies on Mars, a judicial penal colony on Titan, and deep-space missile bases on Pluto. There's also a colony on the newly-discovered planet Hestia, which orbits the sun at 90 degrees from the rest of the Solar System.

* ''Film/AdAstra'' has colonies on the Moon, with pirate rovers fighting over resources, and research bases as far off as Mars. And 29 years before there was a mission to the outer system that lost contact after Saturn.

* ''Film/MrNobody'': In one of the possible realities, Mars is being gradually and realistically colonized by humans who travel there in cryosleep.
* ''Film/TotalRecall1990'': Mars has been settled by human colonists. The {{mutant}} descendants of the first colonists are fighting a guerilla war against the colonial administration, which is only interested in mining turbinium ore for Earth.

* Elon Musk-owned space company Space-X is currently working on a project to send humans back to the moon to stay for a permanent colony and to send humans to Mars for the first time and also create a colony base there as well. This project, working alongside NASA, is set to carry out these actions by the end of the 2020’s decade as of the time this was written. This project could set up humans on both worlds by 2024. After this, Elon Musk then wants to set up colonies on the moons of Jupiter and Saturn.
* NASA’s plans of space colonization within the 2020’s decades sound like something out of a science fiction. With mining colonies on the Moon and terraformed dome bases on Mars interconnected with an underground transportation system. Venus could also be colonized in the next decade, with NASA already having some plans to set up a station there. However, due to the surface of Venus being having an extreme amount of pressure, these colonies would have to be real life [[FloatingContinent floating city]] that would be suspended theoretically using hot air balloon-like suspension sources. There are also plans for after Mars and Venus, with the next prime target being Callisto, one of the moons of Jupiter, that will have a colony to be based around finding extraterrestrial life on the moons of Jupiter. It is expected to be colonized around 2045 according to mission documents. It is also worth mentioning NASA plans to construct an space resort orbiting the Earth called the Voyager Hotel in 2027.

* Virgin Galactic has also expressed their want to colonize Mars. However, instead of wanting to colonize it for research, the company wants Mars to be accessible to the public through commercial space travel.

* ''Film/IndependenceDayResurgence'': Thanks to spending two decades reverse-engineering the Harvesters' technology, humanity has managed to establish bases on the Moon, Mars and Rhea. They're still not capable of [[CasualInterstellarTravel interstellar travel]] though, but [[spoiler:that might change thanks to the Sphere offering to share her technology]].