r/Cosmos↗
Cosmos: Possible Worlds
A place to discuss the documentary series Cosmos: Possible Worlds, Cosmos: A Personal Voyage, and Cosmos: A Spacetime Odyssey
37k subscribers23 posts / mo in Sep 20268 authors / mosince 2010
r/Cosmos has 37k members (+12% over the last 12 months). It gets about 23 posts a month from 8 people. Top topics: New York Cosmos, Black Holes and Big Bang Theory.
When to post on r/Cosmos
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How r/Cosmos has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/Cosmos
Top topics
Share of the subreddit's posts
- New York Cosmos0.9%
- Black Holes0.8%
- Big Bang Theory0.8%
- Exoplanet Discoveries0.6%
- Galaxy Exploration0.5%
Everything else about r/Cosmos
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research