r/spaceflight↗
Spaceflight News and Discussion
A subreddit for articles, images, videos and discussion about spaceflight.
316k subscribers138 posts / mo in Sep 2026 (incl. ~1% by known bots)74 authors / mosince 2009
r/spaceflight has 316k members (+6.8% over the last 12 months). It gets about 138 posts a month from 74 people. Top topics: Artemis Missions, Soyuz Launches & Crews and Moon Missions & Partnerships.
When to post on r/spaceflight
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How r/spaceflight has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/spaceflight
Top topics
Share of the subreddit's posts
- Artemis Missions1.0%
- Soyuz Launches & Crews0.8%
- Moon Missions & Partnerships0.8%
- Lunar Lander Programs0.8%
- Russia Space Relations0.7%
Brands people mention
Most-mentioned brands and sites, last 12 months
- NASA
- Drew Ex Machina
- European Space Agency
- The Hill
- Substack
Everything else about r/spaceflight
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