r/rocketry has 97k members (+20% over the last 12 months). It gets about 186 posts a month from 149 people. Top topics: Rocket Launches and Design, Engine Types & Projects and Rocket Engines.
When to post on r/rocketry
You've used today's free reports
Visitors without an account can open 3 subreddit reports a day. The best time to post on r/rocketry, removal risk and the rest of the report are one step away.
How r/rocketry has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/rocketry
Top topics
Share of the subreddit's posts
- Rocket Launches and Design1.9%
- Engine Types & Projects0.5%
- Rocket Engines0.5%
- Rocket Staging Issues0.4%
- Rocket Launches and Rockets0.4%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Estes Rockets
- NASA
- Massachusetts Institute of Technology
- eCFR
- Printables
Everything else about r/rocketry
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