735 posts analyzed Updated Sep 2026
Averages 25 posts/day, top 10% activity. Most active Sundays around 10 AM UTC. Mostly link posts.
r/space Traffic & Engagement r/space Traffic & Engagement
Volume and engagement over time Posting volume and engagement over time
Post Format
Upvote Distribution
How upvoted posts perform Only posts with 2+ upvotes. The bands below show how those posts are spread by upvote count.
r/space Most Active Times When r/space Is Most Active
Peak posting by day and hour (UTC) When this community posts most, by day and hour (UTC)
Most Active by Day
r/space Flair Performance r/space Flair Performance
Upvotes and volume by flair Average upvotes and post volume by flair
| Flair | Posts | Upvotes |
|---|---|---|
| Discussion | 188 (69.9%) | 19 |
| image/gif | 81 (30.1%) | 1.8K |
Post Type Breakdown
Share by text, image, or link Share of posts by format: text, image, or link
r/space Trending Keywords Trending Keywords in r/space
Ranked by how often they appear Title keywords ranked by how often they appear
| Keyword | Mentions ▼ | Upvotes | Comments |
|---|---|---|---|
| space | 173 (23.5%) | 260 | 28 |
| nasa | 86 (11.7%) | 342 | 45 |
| moon | 52 (7.1%) | 616 | 67 |
| mars | 35 (4.8%) | 214 | 18 |
| mission | 35 (4.8%) | 462 | 41 |
| first | 33 (4.5%) | 882 | 27 |
| launch | 30 (4.1%) | 330 | 48 |
| solar | 30 (4.1%) | 538 | 23 |
| telescope | 25 (3.4%) | 855 | 18 |
| earth | 24 (3.3%) | 839 | 34 |
r/space Mentioned Domains Mentioned Domains in r/space
Most linked sites Most linked sites in this subreddit
| Domain | Links | Upvotes |
|---|---|---|
| youtube.com | 44 | 16 |
| space.com | 21 | 868 |
| youtu.be | 16 | 16 |
| arstechnica.com | 15 | 973 |
| science.nasa.gov | 13 | 301 |
| nasa.gov | 11 | 216 |
| europeanspaceflight.com | 10 | 154 |
| esa.int | 10 | 84 |
| phys.org | 7 | 292 |
| wired.com | 7 | 1.1K |
r/space Top Posts Top Performing Posts in r/space
Highest-performing posts Highest-performing posts. Each title links to Reddit.
I was lucky enough to capture both Eclipses last month. Here is a composite I created of both
The first flowers of spring, Southland, New Zealand
I found the Eye of Spitzkoppe beneath one of the darkest skies on Earth, Namibia
My best photo of Venus with the Milky Way galaxy from the ISS
I used 3 cameras precisely placed to capture Nancy Grace Roman transiting our sun. One of the cameras was connected to a solar telescope, allowing me to see chromosphere details [OC]
The U.S. Just Admitted it Has Weapons in Space. Why That's a Big Deal
The US may lack the engineers to rebuild space assets in a future war: RAND
Bad News: New Study Suggests Water Will Make Large Moon Colonies Impossible
Onlookers fear ‘something very wrong’ with Trump as he claims US ownership of the moon
Milky Way galaxy Captured by my phone from a remote location
r/space Audience Overlap r/space Subreddit Overlap & Related Communities
Overlapping audiences Communities with overlapping audiences
r/space FAQ Frequently Asked Questions About r/space
What's the best time to post on r/space?
Based on posting volume, r/space is most active on Sundays around 10 AM UTC. That window has the most community activity, but busier hours also mean more competition for attention.
How active is r/space?
r/space averages 25 posts per day and ranks in the top 10% for activity among tracked SFW subreddits.
How many upvotes do posts on r/space get?
Posts on r/space average about 360 upvotes this month (net score per post).
What kind of posts does r/space get most?
On r/space, posts are a mix of formats, mostly link posts