For similarly named articles, see Miri (disambiguation).

Miri's homeworld, so named after Miri, a native of the planet, was a Class M planet located in the 70 Ophiucus star system of the Beta Quadrant. It is a parallel universe version of Earth, which had briefly found itself in the main timeline due to temporal instability. (DTI novel: Forgotten History)


In the 1950s, the world's scientists attempted to prolong the race's life; however, their experiments killed the entire adult population. The growth and development of the planet's children (who, in the aftermath of this tragedy, began to call themselves "Onlies") was slowed to the rate of one month per century, but the older survivors would age rapidly and die upon reaching puberty.

The planet was visited in 2266 by the USS Enterprise, where the landing party members were struck by the same affliction. Dr. Leonard McCoy was successful in finding a way to counteract the rapid aging. (TOS episode: "Miri")

The homeworld of Miri and her friends, the Onlies, appeared at first to be a simple copy of Earth; however, it was later discovered that Miri's homeworld was actually Earth itself, of an alternate timeline. Miri's Earth had briefly drifted into the main universe, due to instability in the local sector of space. In June 2274, the planet returned to its original timeline. (DTI novel: Forgotten History)

Later, in 2293, McCoy discovered a similar ailment on Mestiko to the one on the Onlies' planet. (TOS eBook: Mere Anarchy: Its Hour Come Round)

An alternate version of the later fate of Miri's homeworld is given in the third issue of Marvel's Star Trek: Untold Voyages comic series, where the planet persisted in the Prime universe even into the year 2275. (TOS - Untold Voyages comic: "Past Imperfect")



Various sources have given different names and planetary numbers for the planet. The novelization of the episode by James Blish states that the planet is the fourth planet of the 70 Ophiucus system. This story also ignores the stated idea that the planet is a parallel Earth, and states that it was an old Earth colony which was established in the early 2100s and forgotten about. The TOS novel The Cry of the Onlies gives the planetary designation of Juram V and supports the parallel Earth theory. The reference book Star Charts gives the planet the designation of Miri and gives a designation of FGC-347601 III, making it the third planet of the system. In the older Star Trek Maps it was the third planet in the UFC 347601 system. The novel Preserver calls it Site 2713 and describes it as one of three Earth duplicates created by the Presevers. Forgotten History provides a different explanation: Miri's homeworld is actually Earth of a parallel timeline.


planets visited by the USS Enterprise (NCC-1701) during Captain Kirk's initial five-year mission (2265-2270)
various Aprilia IIICaporyGarrus
2265 EarthDraxis IITallyAlpha Ortelina VIIArronus VIIAldebaran IIIM-155MestikoDimorusTendarArchernar IVDelta Vega IMiri's homeworldStarbase 127348-IIrobot planetTimshelK-GZartaMetamorphaNumero UnoMortiInicrustVoodoo planetGamma Alpha VStarbase 8 planetPollux IIDukarNeesanAlgenib II
2266 Beta IVRigel XIIPsi 2000Tlaoli IVAlpha Proxima IIAngiraBeta CarinaeExo III1324-IVCanaraNadorM-113Alfa 177Planet QBeneciaYkoTheta VII (Rell's world)Talos IVNumero UnoGateway
2267 Makus IIIBeta VIJanus VIOmicron Ceti IIIDenevaCeti Alpha VEminiar VIIBabelGamma Canaris 527Taurus IIHydra Epsilon IIIXimega IIPerseus Arm planetoidYkoSalvumGrotusRifas-LAmusement Park planetHeitius VIICentaurus VTyrtaeus IIGothosCestus IIINisusIron-silica planetZutotanium planetoidMuddEarthCanaraBeta IIIPyris VIIVulcanGamma XaridianPollux IVArgelius IIHalkaBavaryaNeolithiaMythraCapella IVGamma 400Magna RomaGamma Trianguli VISigma Iotia IIMasabaLekythosTyrtaeus IIShroud IVTycho IVDonico IIRimilliaOrgania
2268 Narnel's WorldNeuralAlpha Malurian VIBeta Canzadia IIIFornax IIGamma IITriskelionArgus XTycho IVTheta VIISigni BetaEarthPegasus IVCareta VDireidiEeiauoPatria IExo IIIT'nufoTranquility VIILeora IVAcademyDelta Canaris IVTautee star systemAmmdonMarcos XIIOctavius IVBeta CabriniAmerindBeta XII-AElasTroyiusSigma Draconis VIEkosScalosGideonBrellian IVPrastorDistrel
2269 MercanAnomalyEdenHolberg 917GSarpeidonExcalbiaAndrosPollux VAvalonCamus IIAragosTanisAleph PrimeKyrosBeta CastelliHeloxUnnamed Hoshan planetsChrellkan IIIChrellkan IVVidenDengella IIAlnath IISanctuaryMemory PrimeEphrata IVGelladorn/R-775 IVelat Nol/R-836 IITheta Tau VTalin IVAleph IIIBoaco VITrefolgMantillesMerak IIArdanaBabelOrganiaGatewayMaltos IV
2270 Isitra ZeroGatewayMercanDenebiaPhylos IIBeta Omicron Delta IIIMotherlodeMegas-TuTerratinSherman's PlanetArgoVedala asteroidDramia IIArretLactra VIIDelta Theta IIIArchernar IVCenotaphTaygeta VOkeanosElcidar Beta IIIYoondriAleriadAritaniYalboSycoraxTalos IVPillagra/R-855 IIIR-855EarthStarbase 12Tomarii

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