// SUBREDDIT_PROFILE
r/astronomy
› The amateur hobby of humanity since the dawn of time and scientific study of celestial objects.
// MEMBERS
3,156,618
› subscribers
// POSTS_INDEXED
1,928
› analyzed records
// COMMUNITY_AGE
18y
› since 2008-03-28
// STATUS
[ok] active
› feed indexed
// QUICK_ACTIONS
// Recent posts in r/astronomy
[ latest we indexed · by upvotes ]- 01 Astronomer here! Big news- I am a winner this year for the Wendy and Eric Schmidt Awards for Excellence in Science Communications, in large part for my work on Reddit!!! ↑ 987 · 2026-10-27
- 02 Pleiades (known as Matariki in NZ) over Aoraki/Mount Cook (OC) ↑ 977 · 2026-10-14
- 03 90 hours of Wizard Nebula ↑ 867 · 2026-10-10
- 04 Andromeda Galaxy (M31) — 55 Hours of Integration ↑ 104 · 2026-11-06
- 05 Kalahari, South-Africa ↑ 80 · 2026-11-06
// RELATED_COMMUNITIES
[ 12 communities · education & science ]
r/math
› 3,977,910 members · 617 posts indexed
r/chemistry
› 3,888,273 members · 1,754 posts indexed
r/languagelearning
› 3,414,122 members · 1,540 posts indexed
r/getstudying
› 3,325,691 members · 5,421 posts indexed
r/artefactporn
› 3,255,159 members · 343 posts indexed
r/physics
› 3,255,067 members · 1,341 posts indexed
r/college
› 2,937,259 members · 161 posts indexed
r/askhistorians
› 2,926,776 members · 8,012 posts indexed
r/askengineers
› 2,750,114 members · 826 posts indexed
r/100yearsago
› 2,503,078 members · 169 posts indexed
r/theydidthemath
› 2,456,044 members · 3,055 posts indexed
r/teachers
› 2,441,997 members · 9,636 posts indexed
// FAQ [ 3 entries ]
01 › What is r/astronomy about? [ expand ↓ ] [ collapse ↑ ]
r/astronomy is a Reddit community with 3,156,618 members. The amateur hobby of humanity since the dawn of time and scientific study of celestial objects.
02 › How active is r/astronomy? [ expand ↓ ] [ collapse ↑ ]
r/astronomy has 3,156,618 subscribers and 1,928 posts in our index. It was created on 2008-03-28, 18 years ago.
03 › Which subreddits are similar to r/astronomy? [ expand ↓ ] [ collapse ↑ ]
Other Education & Science communities of a similar size include r/math (3,977,910 members), r/chemistry (3,888,273 members), r/languagelearning (3,414,122 members), r/getstudying (3,325,691 members). Each is listed with its own subscriber and post counts in the related communities section above.