Related to r/Astronomy
SubMouse ranks matches from public descriptions, shared topics and directory links. This is our own matching. Adult communities are excluded.
Prefer a short written guide? See curated related guide for r/Astronomy.
| Community | Members | 7-day growth | Posts/day | Why it matched |
|---|---|---|---|---|
|
r/spacex
r/SpaceX, the premier SpaceX discussion community |
3.7M | +411 | 6.4 | shared terms: space; same topic: Space & Astronomy |
|
r/space
/r/space: news, articles and discussion |
28M | +2.7K | 26.9 | shared terms: space; same topic: Space & Astronomy |
|
r/science
Reddit Science |
34.6M | +4K | 37.7 | shared terms: astronomy, science, scientific; listed as related in our directory |
|
r/KerbalSpaceProgram
Launching Space Frogs since 2011... for SCIENCE! |
1.5M | +339 | 40.2 | shared terms: space; listed as related in our directory |
Figures as of 2026-11-02 04:31 UTC; 7-day growth measured from 2026-10-26. Posts/day is shown where recent activity is available.