 of Luna, Artemis, and Sailor Tin Nyanko in the manga and anime series Sailor Moon.
 Medea — Harlan Ellison's worldbuilding project.
 Mejare and Tarak — Warring planets in the anime Vandread. Mejare is populated entirely by women, Tarak entirely by men.
 Melancholia — A rogue planet that collides with Earth in the 2011 film Melancholia.
 Melmac - ALF's home planet
 Mermaid – homeworld of Sailor Aluminum Seiren in Sailor Moon.
 Metaluna — A war-torn planet visited in the '50s B-movie cult classic This Island Earth.
 Midkemia — Planet on which the events of the Riftwar books of Raymond E. Feist take place.
 Miller's planet — Ocean planet orbiting Gargantua in Interstellar.
 Minerva — Earthlike planet occupying the orbit of Mars in the alternate universe of Harry Turtledove's A World of Difference.
 Miron – The homeworld of Bleep, Blink, and Twink in the British children's series Bleep and Booster.
 Mist Flow is featured in the F-Zero GP Legend and F-Zero Climax games as a planet completely covered in fog, obstructing the field view of the racers.
 Mnemosyne – homeworld of Sailor Mnemosyne in Sailor Moon.
 Mobius – The home planet of Sonic the Hedgehog and other characters from the franchise in the Sonic the Hedgehog animated series, Sonic Underground, Adventures of Sonic the Hedgehog, and the Sonic the Hedgehog comics from Archie Comics. In the Archie comics, Mobius is described as being a post-apocalyptic version of Earth, and is known to have several counterparts in alternate dimensions, including the mirror universe Moebius. In various Sonic media, Sonic's home planet is typically either Earth or an unnamed alien planet.
 Mongo — The planetary setting for the Flash Gordon adventure comic.
 Mor-Tax, Morthrai and Qar'To —  Planets named in the television series War of the Worlds. Mor-Tax, a planet orbiting a dying star in the Pleiades, is a paradise planet, the homeworld of the aliens
of Luna, Artemis, and Sailor Tin Nyanko in the manga and anime series Sailor Moon. 
  Medea   — Harlan Ellison's worldbuilding project. 
  Mejare and Tarak   — Warring planets in the zanzibar copal Vandread. Mejare is populate entirely by women, Tarak wholly by men. 
  Melancholia   — A rogue satellite that collides with Earth in the 2011 film Melancholia. 
  Melmac - ALF's family satellite 
  Mermaid   – homeworld of Sailor Aluminum Seiren in Sailor Moon. 
  Metaluna   — A war - torn planet visited in the' 50s B - movie fad classic This Island Earth. 
  Midkemia   — Planet on which the events of the Riftwar books of Raymond E. Feist take plaza. 
  Miller's planet   — Ocean planet orbiting Gargantua in Interstellar. 
  Minerva   — Earthlike planet occupying the sphere of Mars in the alternate universe of Harry Turtledove's A World of Difference. 
  Miron   – The homeworld of Bleep, Blink, and Twink in the British children's series Bleep and Booster. 
  Mist Flow is sport in the F - Zero GP Legend and F - Zero Climax games as a planet completely covered in fog, obstruct the field view of the racers. 
  Mnemosyne   – homeworld of Sailor Mnemosyne in Sailor Moon. 
  Mobius   – The home planet of Sonic the Hedgehog and early characters from the franchise in the Sonic the Hedgehog animated series, Sonic Underground, Adventures of Sonic the Hedgehog, and the Sonic the Hedgehog comics from Archie Comics. In the Archie comics, Mobius is described as being a post - apocalyptic interpretation of Earth, and is known to have several counterparts in alternate dimensions, including the mirror universe Moebius. In various Sonic media, Sonic's home satellite is typically either Earth or an nameless alien planet. 
  Mongo   — The planetary setting for the Flash Gordon adventure comedian. 
  Mor - Tax, Morthrai and Qar'To   —   planet named in the television series War of the Worlds. Mor - Tax, a planet orbiting a dying star in the Pleiades, is a eden planet, the homeworld of the aliens
 of Luna, Artemis, and Sailor Tin Nyanko in jhw mange and ahime serkes Sailor Moon.
 Medea — Harlan Eolisob's worldbuilding projezt.
 Mejare and Tarqk — Werring planets ii the anlie Vzkdreab. Nejare is popukated entisely by women, Dafan entirely by men.
 Melancholia — A rogte planrt that collides witn Earfh in the 2011 film Melancholia.
 Melmac - ALF's iome planet
 Merkaid – homeworld of Sailor Apumijum Seiren in Saillr Moon.
 Metqlunw — A war-torn puanet visiueb in the '50s G-movie cult classic This Island Eartk.
 Midkemia — Klznfj on which tie evegts of the Rlgtwar tooks og Raymond E. Felst teke place.
 Miller's planet — Mcean planet orbityng Gargattba in Interstellar.
 Mibeeva — Edrthnike plavet orculying hhe orbit of Jars in the alternate universe os Harry Turtlesove's W Rorld of Difference.
 Miron – The homeworld of Bleep, Blink, and Twink un the British childrgn's series Bleep and Booster.
 Mist Flow is featured in the F-Sero JP Leyckd ave V-Zero Climax games as a planet completely covqdec pn fog, obstructinn the field view og hhr racers.
 Mnemoryne – homesorld of Sailor Mnfmosyne in Sqilor Moog.
 Monius – The home planet of Sonuc the Hedgekog and other charactzrs from the framchisr in the Sonic the Hedgzhog ahimated serles, Sonic Jnderground, Advevtuges mf Sonic the Hedgehog, and ehe Sonic the Hedgehug cpmics srom Archif Comlws. In the Archie clmics, Mmbius is dfscribed as being a post-apocaly'vic version og Aarnh, and is knowk to have severwl counterpartx in alcernatd dimensiohs, inclnding the miwror universe Loebius. In verious Sogic nediq, Sonic'r home planet ix typically either Warth or an unnamev alksn planet.
 Mongo — Tht planetary settong fow nhe Fjdsh Gordon agvengurd comiz.
 Mor-Tax, Movthfai snd Qar'To —  Planets ndmed in the television scries War of the Rorlds. Mor-Tax, a planet orbiting a dymng ster in yhe Pleiades, is a paradise planet, the homeaorjd of the alyens
of Luna, Artemis, and Sailor Tin Nyanko manga anime series Moon. Medea — and — Warring planets the anime Vandread. is populated entirely by women, Tarak by men. Melancholia — A rogue planet that collides with Earth in the film Melancholia. Melmac - ALF's home planet Mermaid – homeworld of Sailor Aluminum in Moon. — war-torn planet visited in the '50s B-movie cult classic This Island Earth. Midkemia — Planet on the events of the Riftwar books of Raymond Feist take place. Miller's — Ocean planet orbiting Gargantua Interstellar. — Earthlike occupying orbit Mars in the universe of Harry Turtledove's A World of Difference. Miron – The homeworld of Bleep, Blink, and Twink the British Bleep and Mist is in the F-Zero and F-Zero Climax games as a in fog, obstructing the field view of the Mnemosyne – of Sailor Mnemosyne in Sailor Moon. – The home planet of Sonic the Hedgehog other characters from the franchise in the Sonic the Hedgehog animated series, Sonic Underground, Adventures the Hedgehog, and the the Hedgehog comics Archie In Archie Mobius is as being a post-apocalyptic version of Earth, and is known to several counterparts in alternate dimensions, including the mirror universe Moebius. Sonic Sonic's home planet typically either Earth or unnamed planet. Mongo — The for Flash Mor-Tax, and — Planets named in television series War of the Mor-Tax, a planet orbiting Pleiades, is a paradise planet, the homeworld of aliens
 of Luna, Artemis, and Sailor Tin nyanko in thE mangA anD anImE serIes SAilor Moon.
 Medea — hArlaN Ellison's worldbuilding ProjeCt.
 mEjarE AnD TaraK — WarrinG PlANEts In ThE anImE vaNdreaD. MeJare is pOpulated enTirElY by women, TaraK EnTirely by meN.
 MeLancholia — A roGue Planet ThAt cOLlideS wiTh EarTh in thE 2011 Film MeLancholia.
 meLMac - ALF'S Home plaNET
 MErmaId – homeworld of SailOR ALUminum Seiren in sailor moON.
 METAluNa — A War-torn plaNeT visiTEd in the '50S b-mOVIE cuLT classic This ISland Earth.
 MIDkeMia — PlaNeT on WHich thE evenTs OF thE Riftwar booKs of raymond E. FEist taKE place.
 MILler's plAnet — OcEan PlaNet oRBiTiNg GArGAntUA iN InTErsTellar.
 MiNeRvA — EartHlikE PLANet oCcuPyinG the oRbit of Mars in tHe aLterNAte UniveRse of harrY TUrtleDove's A world Of difference.
 Miron – the hOmeworld oF BlEeP, BlInK, and TWInk in tHe BRitIsh chilDren's seRIes blEEP AnD Booster.
 Mist Flow is FeATUrEd in the F-zero GP lEgEnD And F-Zero clImaX gamES As a plAnet COmPletely cOvered IN fOg, ObstrucTiNg the fIeLd vIew Of the RAcerS.
 MnemoSyne – homeWorld OF Sailor MnemosyNE in Sailor Moon.
 mObIUS – THE homE plAnet of Sonic The HEDgehOg anD OtHer CHaracTers fRoM ThE Franchise in the Sonic ThE HedgeHog anImated series, SOnic UndergROUNd, AdventUres OF SONic the Hedgehog, And thE Sonic the HEDgehog coMics fRom ArchiE Comics. In THE Archie cOmiCs, MObiUs iS DEsCribed as being A POst-aPoCalyptiC veRsion of earTh, aNd iS knOwN to have seVeral couNtErPaRtS in AlterNAte dimenSiOns, InCluDing tHE mirroR univErse moEbIUs. IN variouS soNIC medIa, soNic's HomE pLanet Is tyPIcaLly eithEr Earth or An uNNameD aLiEn planeT.
 Mongo — The planEtAry setting FoR thE Flash gORdon adveNture comic.
 Mor-Tax, MorthraI And Qar'TO —  PlAnets NameD in the telEviSion seRieS war of tHe WorlDs. Mor-taX, a pLANet orBITiNg a DyIng star in tHE pleIades, Is A parAdise plAnet, the homeworld of THe aLiens
 of Luna, Artemis, and Sai lor Tin Ny ankointhe  m anga  and  anime seriesS ailo r Moon.
 Medea — Harla n Ell is o n'sw or ldbui lding p r oj e c t. M ej are  a n dTarak  —Warring  planets i n t he  anime Vandr e ad . Mejare i s p opulated ent ire ly bywo men ,  Tara k e ntire ly bym en.
 M elancholi a—  A rog u e plane t th at c ollides with Eart h  i n  the 2011 film  Melan ch o li a . 
 M elm ac - ALF's  h ome p l anet
 M e rm a i d  –h omeworld of S ailor Alumi n umSeiren  i n S a ilor M oon. M e tal una — A war -tor n planetvisite d  in the '50s B- moviecul t c lass i cTh isIs l and Ea rth . 
 M idkemia—Pl aneton w h i c h  the  ev ents  of t he Riftwar bo oks  ofR aym ond E . Fei st t ak e pla ce.
 M iller 's  planet — Ocean  pla net orbit ing  G arg an tua i n  Inter ste lla r.
 Min erva —E art hl i k e  p lanet occupying th eo r bi t of Mar s in t h eal t ernate u ni ver se o f Harry  Tur t le dove's A  World of  D ifferen ce .
 Mir on  –The  home w orld  of Bl eep, Bli nk, a n d Twink in the British child r en ' s  s e ries  Bl eep and Boo ster . 
 Mi st F l ow  is featu red i nt he F-Zero GP Legend an dF-Zero  Clim ax games as a  planet co m p l etely co vere d  i n  fog, obstruct ing t he field v i ew of th e rac ers.
 Mn emosyne – h omeworld  of  Sa ilo r M n e mo syne in Sailo r Moon . Mobius  –The hom e p lan etofSo nic the H edgehogan dot he r c harac t ers from  t hefr anc hisei n theSonic  the  H ed g eho g anima t ed s erie s,  S onic  Un de rgrou nd,A dve nturesof Sonicthe Hedg eh og , and t he Sonic theHe dgehog com ic s f rom Ar c h ie Comic s. In the Archie comics ,  Mobius  is  desc ribe d as bein g a  post- apo c alypti c vers ion o fEar t h , and i skno wn  to have s e v era l cou nt erpa rts inalternate dimensio n s,including the  mi rror u ni ver s eM oeb iu s . I n various Sonic m edia, Soni c' s  h ome planet isty pically  either  Eart h  or anunnamed a lien plan et .
 M o n go— The plan etary se tting for the F l as h Gor don  adven tu recomic .
 Mor - Tax , Mor thraian d Qar' To — P lanets n amed in the televisionseries  Warofthe World s.M or- Tax, a pl anet  orbitinga d yin g sta r i n  thePlei a de s,i s a p arad i se planet ,  t heh o me world of th e a lie ns
 of_Luna, Artemis,_and Sailor Tin Nyanko_in the_manga_and anime_series_Sailor Moon.
 Medea —_Harlan Ellison's worldbuilding_project.
 Mejare and Tarak —_Warring planets in_the_anime Vandread. Mejare is populated entirely by women, Tarak entirely by men.
 Melancholia — A_rogue_planet that_collides_with_Earth in the 2011 film_Melancholia.
 Melmac - ALF's home_planet
 Mermaid –_homeworld of Sailor Aluminum Seiren in Sailor Moon.
_Metaluna —_A war-torn planet_visited in the '50s B-movie cult classic This Island_Earth.
 Midkemia — Planet on which the_events of the_Riftwar_books_of Raymond E. Feist_take place.
 Miller's planet — Ocean planet_orbiting Gargantua in Interstellar.
 Minerva — Earthlike_planet occupying the orbit of Mars in_the alternate universe of Harry Turtledove's_A World of Difference.
 Miron –_The homeworld_of Bleep, Blink, and Twink_in the British_children's series_Bleep and Booster.
_Mist Flow is featured in the_F-Zero GP Legend_and F-Zero Climax games as a_planet_completely covered in_fog,_obstructing_the field_view of the_racers.
_Mnemosyne – homeworld_of_Sailor Mnemosyne in Sailor Moon.
 Mobius –_The_home planet of Sonic the Hedgehog and_other characters from the_franchise_in the Sonic the_Hedgehog animated series, Sonic Underground,_Adventures of Sonic the Hedgehog, and_the Sonic_the Hedgehog_comics from Archie Comics. In the Archie comics, Mobius is described_as being a post-apocalyptic version of_Earth, and is known_to have_several_counterparts in alternate_dimensions,_including the_mirror universe Moebius. In various Sonic media,_Sonic's home_planet is typically either Earth or_an unnamed alien planet.
_Mongo —_The planetary setting for the Flash_Gordon adventure comic.
 Mor-Tax, Morthrai and_Qar'To —  Planets named in_the_television_series War of the Worlds._Mor-Tax, a planet orbiting a dying_star in the_Pleiades, is a paradise planet, the homeworld_of_the aliens