r/cosmos
A place to discuss the documentary series Cosmos: Possible Worlds, Cosmos: A Personal Voyage, and Cosmos: A Spacetime Odyssey
How to think about r/cosmos
This community is dedicated to discussing the Cosmos documentary series, including 'Cosmos: Possible Worlds', 'Cosmos: A Personal Voyage', and 'Cosmos: A Spacetime Odyssey'. Members engage in deep conversations about astronomical concepts, scientific discoveries, and philosophical implications of the universe. The community is characterized by a passion for science, curiosity about the cosmos, and a desire to share knowledge and insights related to the series and its themes.
Confidence 4/5
Audience
Participants in this community are typically science enthusiasts, students, and educators with a keen interest in astronomy and cosmology. The demographic is diverse, spanning various ages, but tends to attract individuals who are intellectually curious and appreciate scientific discourse. The vibe is generally positive and inquisitive, with members eager to learn and share their understanding of complex scientific ideas.
Posting culture
Content that thrives includes thoughtful discussions, insightful analyses, and links to relevant scientific articles or videos. Posts that are overly promotional or lack substance often receive downvotes. The community values well-researched contributions and encourages members to engage in meaningful dialogue. Posting frequency can vary, but active discussions often emerge around new episodes or scientific breakthroughs.
Brand engagement notes
Brands should approach this community with caution, as members are generally resistant to overt promotion or marketing tactics. Authentic engagement through sharing valuable content, such as educational resources or engaging discussions about the series, is more likely to resonate. Brands can also participate by sponsoring relevant discussions or providing expert insights, but must avoid appearing insincere or self-serving to maintain credibility within the community.
Top keywords
What r/cosmos talks about
Weighted by how often each term appears in posts and comments, relative to baseline frequency. The largest words are the strongest signals of community focus.
External signals
Where the community looks
Top external domains linked from posts and comments — a quick read on the sources of truth this audience trusts.
- youtu.be
- youtube.com
- i.redd.it
- ilovetheuniverse.com
- blog.thespaceacademy.org
- spacebestnews.blogspot.com
- untolduniverse.thespaceacademy.org
- v.redd.it
- spaceworldsnews.blogspot.com
- reddit.com
- nasa.gov
- pedrodanieldeoliveira.blogspot.com
- forbes.com
- cosmosmagazine.com
- shiningscience.com
- oopspace.com
- marssociety.org
- bbc.com
- uk.news.yahoo.com
- en.m.wikipedia.org
Top contributors
Who shapes the conversation
The most active and most-upvoted posters and commenters in this community. Useful when planning outreach or studying a community's tastemakers.
Top posters
By post count
- u/I-Love-The-Universe
- u/CreativeCulture1984
- u/spacewal
- u/[deleted]
- u/Arditbicaj
- u/Waleed9171028
- u/kamlaish
- u/DrBrianKeating
- u/Disculogic
- u/SpaceCinema_
- u/HappyTrifle
- u/universe007official
- u/hamzakb19
- u/StripCosmos
- u/VehicleOk3586
- u/romancistadeoliveira
- u/qiling
- u/DatGuy1122007
- u/snowpixelapp
- u/Saganism1996
- u/LillaCat3
- u/carlsagandotcom
- u/TheExoplanetsChannel
- u/SnooSprouts5050
- u/BeforeOrion
- u/veterinarysite
- u/karanchoudharyx
- u/Thinknova
- u/EdwardHeisler
- u/satoharogonzalez
- u/assassin_65170
- u/PropaGate-Art
- u/agnofinis
- u/Ovalman
- u/Adhambr
- u/KrisArdrey
- u/jai_guruji11
- u/HayleyTheLesbJesus
- u/AdelSexy
- u/Bald__egg
- u/Armoniad
- u/ingibingi
- u/n0obno0b717
- u/Party-Association322
- u/rameshmahesh
- u/Firewarrior_005
- u/Wanda-Fleker
- u/Madistoned
- u/zedhenson
- u/olhonestjim
- u/SpacePonder
- u/TheUniverseOrNothing
- u/No_Constant_3131
- u/AlphaDon
- u/Theremin_hands
- u/operadrama92
- u/cccjjjbbb
- u/IamTimNguyen
- u/angalis7
- u/wowwoahwow
- u/1080krld
- u/Vegetable_Oven5503
- u/Babbna
- u/Astra_Nots
- u/Abrahamlinkenssphere
- u/NobleNeil
- u/catsnatch2
- u/BabbleMabble
- u/alakitnk
- u/oguzs
- u/JaazUpp
- u/hollowXchain
- u/xVale
- u/ArcZynar
- u/HumanSeeing
- u/scooterbrasil
- u/marcosladarense
- u/Prormamealf45
- u/9Epicman1
- u/Longjumping_Cap_2312
- u/ResilientRainbowZZZ
- u/PedroSilvaSouto
- u/Old7777
- u/HorrorLettuce1012
- u/IamCherokeeJack
- u/sillychillly
- u/proredditer20
- u/wheelanddeeler
- u/whyamihere0253
- u/Careful-Duck-142
- u/Alex_Turone
- u/failed_evolution
- u/Yur7ink
- u/Eseoffishal-444
- u/JudgementalJester
- u/Administrative-Ant70
- u/OffgodOff
- u/No-Buy-1803
- u/Ideas_Galacticas_HO
- u/Ashamed-Panda-868
By votes
- u/I-Love-The-Universe
- u/Disculogic
- u/Arditbicaj
- u/Waleed9171028
- u/kamlaish
- u/spacewal
- u/DatGuy1122007
- u/CreativeCulture1984
- u/hamzakb19
- u/[deleted]
- u/HappyTrifle
- u/snowpixelapp
- u/carlsagandotcom
- u/Saganism1996
- u/PropaGate-Art
- u/StripCosmos
- u/SpaceCinema_
- u/DrBrianKeating
- u/agnofinis
- u/Ovalman
- u/TheExoplanetsChannel
- u/KrisArdrey
- u/Adhambr
- u/jai_guruji11
- u/HayleyTheLesbJesus
- u/AdelSexy
- u/Bald__egg
- u/Armoniad
- u/universe007official
- u/ingibingi
- u/romancistadeoliveira
- u/n0obno0b717
- u/VehicleOk3586
- u/SnooSprouts5050
- u/Party-Association322
- u/Firewarrior_005
- u/Madistoned
- u/rameshmahesh
- u/Wanda-Fleker
- u/zedhenson
- u/olhonestjim
- u/SpacePonder
- u/TheUniverseOrNothing
- u/BeforeOrion
- u/No_Constant_3131
- u/AlphaDon
- u/veterinarysite
- u/karanchoudharyx
- u/Theremin_hands
- u/operadrama92
- u/cccjjjbbb
- u/IamTimNguyen
- u/LillaCat3
- u/wowwoahwow
- u/angalis7
- u/1080krld
- u/Astra_Nots
- u/Vegetable_Oven5503
- u/Babbna
- u/NobleNeil
- u/catsnatch2
- u/Abrahamlinkenssphere
- u/BabbleMabble
- u/alakitnk
- u/oguzs
- u/JaazUpp
- u/hollowXchain
- u/ArcZynar
- u/9Epicman1
- u/Thinknova
- u/xVale
- u/HumanSeeing
- u/scooterbrasil
- u/marcosladarense
- u/Prormamealf45
- u/PedroSilvaSouto
- u/ResilientRainbowZZZ
- u/Longjumping_Cap_2312
- u/Old7777
- u/EdwardHeisler
- u/HorrorLettuce1012
- u/whyamihere0253
- u/IamCherokeeJack
- u/sillychillly
- u/proredditer20
- u/qiling
- u/wheelanddeeler
- u/satoharogonzalez
- u/Careful-Duck-142
- u/Alex_Turone
- u/failed_evolution
- u/assassin_65170
- u/Yur7ink
- u/Eseoffishal-444
- u/JudgementalJester
- u/Administrative-Ant70
- u/OffgodOff
- u/No-Buy-1803
- u/Ideas_Galacticas_HO
- u/Ashamed-Panda-868
Top commenters
By comment count
- u/[deleted]
- u/Arditbicaj
- u/FloodMoose
- u/actum_tempus
- u/Siouxsiek
- u/Educational_Top_3919
- u/ToriYamazaki
- u/Ovalman
- u/Brilliant-Emu-4164
- u/Big-Dark3861
- u/notgregbryan
- u/Matt_Shatt
- u/Greyhaven7
- u/dnuohxof-1
- u/ihavenoego
- u/silverfang789
- u/emceelokey
- u/ElementoDeus
- u/TraditionalMood277
- u/spoonylove420
- u/Holinhong
- u/Rugaru_999
- u/Psywar_pt
- u/dinostar
- u/Caduceus1515
- u/axx-hole
- u/WaitWhereAmI024
- u/Uncle_Paul_Hargis
- u/BellBoardMT
- u/Bunker_TM
- u/NodoBird
- u/cgstarry
- u/Available_Aioli8
- u/fnc7309
- u/Fuckknuckle_974
- u/burzuc
- u/Delicious-Gap1744
- u/BilliamClimptonIII
- u/Villains_Included
- u/ChubbyWanKenobie
- u/IceKingBryce
- u/Jemmo1
- u/rethxoth
- u/Goldenstripe941
- u/act9in
- u/TheGrindingStrife
- u/BuckDunford
- u/ferrouswolf2
- u/chuycobo
- u/Sound_Space
- u/ruffsnap2
- u/megs_in_space
- u/PsychoGenesis12
- u/Xenosaurian
- u/YourMagnetar
- u/smalaki
- u/EdenUnchained
- u/Spacemage
- u/snowpixelapp
- u/ObliviousFail
- u/whyhellotherelady
- u/danieltranca
- u/alb1234
- u/Eastern-Membership67
- u/agnofinis
- u/Mars112v
- u/TommyEugenius
- u/sahand_n9
- u/Snarebusch
- u/DefenderRed
- u/FactStraight3026
- u/NiceGiraffes
- u/Djerrid
- u/carlsagandotcom
- u/Abrahamlinkenssphere
- u/ZetaFish
- u/dCLCp
- u/Mendican
- u/AwkwardBurritoChick
- u/Lopakalolo
- u/adamstrask
- u/MetalicP
- u/heyiambob
- u/grounded_astronaut
- u/asantos
- u/labink
- u/Zonkman-
- u/citson88
- u/danaidhaoidh
- u/Glexanice
- u/DrAquafresh793
- u/ChipsAhoyNC
- u/thisishoustonover
- u/jmlee236
- u/turriferous
- u/ButWhatIfIAmARobot
- u/SnackingRaccoon
- u/nerium52
- u/Genpinan
- u/LarsLack
By votes
- u/RenoLuke13
- u/dnuohxof-1
- u/[deleted]
- u/Bald__egg
- u/carlsagandotcom
- u/TheGrindingStrife
- u/chuycobo
- u/agnofinis
- u/theantnest
- u/ObliviousFail
- u/Arditbicaj
- u/Snarebusch
- u/Abrahamlinkenssphere
- u/Genpinan
- u/Greyhaven7
- u/Rugaru_999
- u/Sound_Space
- u/smalaki
- u/ToriYamazaki
- u/grounded_astronaut
- u/ReverendVoice
- u/Holinhong
- u/Lopakalolo
- u/Matt_Shatt
- u/ihavenoego
- u/Caduceus1515
- u/Uncle_Paul_Hargis
- u/Ovalman
- u/DefenderRed
- u/heyiambob
- u/LarsLack
- u/Odeeum
- u/doni-kebab
- u/AdamInChainz
- u/Psywar_pt
- u/BuckDunford
- u/adamstrask
- u/Zonkman-
- u/DrAquafresh793
- u/TreeHuggerWRX
- u/offshore89
- u/Tinman_ApE
- u/actum_tempus
- u/Siouxsiek
- u/EdenUnchained
- u/TommyEugenius
- u/Brilliant-Emu-4164
- u/Big-Dark3861
- u/Djerrid
- u/SnackingRaccoon
- u/Fearless_Tomorrow_33
- u/ebow77
- u/Extraltodeus
- u/ccorbydog31
- u/ADIDASects
- u/TheTrueMule
- u/GrumpyDonkey77
- u/silverfang789
- u/axx-hole
- u/WaitWhereAmI024
- u/ferrouswolf2
- u/Educational_Top_3919
- u/whyhellotherelady
- u/sahand_n9
- u/FactStraight3026
- u/notgregbryan
- u/ZetaFish
- u/dCLCp
- u/MetalicP
- u/citson88
- u/Reserve7
- u/Lobomite
- u/milliardo
- u/AdelSexy
- u/lilsouthern228
- u/Accomplished_Sun1506
- u/Cool-Maize-2551
- u/emceelokey
- u/FloodMoose
- u/BellBoardMT
- u/Bunker_TM
- u/NodoBird
- u/cgstarry
- u/Available_Aioli8
- u/fnc7309
- u/Fuckknuckle_974
- u/burzuc
- u/Delicious-Gap1744
- u/BilliamClimptonIII
- u/Villains_Included
- u/ChubbyWanKenobie
- u/IceKingBryce
- u/Jemmo1
- u/rethxoth
- u/ruffsnap2
- u/megs_in_space
- u/Spacemage
- u/danieltranca
- u/Mars112v
- u/danaidhaoidh
Similar communities
Where this audience also spends time
Topic-adjacent communities surfaced from Reddit's own related subreddit signal.
FAQ
r/cosmos — frequently asked questions
Quick facts about this subreddit's size, history, focus, and related communities.
How many subscribers does r/cosmos have?
r/cosmos has approximately 35,274 subscribers as of May 27, 2026.
When was r/cosmos created?
r/cosmos was created on August 12, 2010 (16 years ago).
What is r/cosmos about?
This community is dedicated to discussing the Cosmos documentary series, including 'Cosmos: Possible Worlds', 'Cosmos: A Personal Voyage', and 'Cosmos: A Spacetime Odyssey'. Members engage in deep conversations about astronomical concepts, scientific discoveries, and philosophical implications of the universe. The community is characterized by a passion for science, curiosit…
What subreddits are similar to r/cosmos?
Communities similar to r/cosmos include r/ardor, r/komodoplatform, r/stratisplatform, r/carlsagan, r/spacevideos.
Who are the most active posters on r/cosmos?
The most frequent posters on r/cosmos include u/I-Love-The-Universe, u/CreativeCulture1984, u/spacewal.
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