// subreddit stats
r/space
How big r/space is, how busy it is, what its rules say, who posts most, and when its readers are online.
Live data, refreshed daily
- Subscribers
- 28M
- Created
- 2008
- Posts / day
- 26.4
- Comments / day
- —
GeneralShare & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology
Best time to post in r/space
When readers are commenting is when a new post gets seen. Busiest for posts: Sun 12pm UTC, Sun 3pm UTC, Sun 1pm UTC. Times below are shown in your timezone.
Busiest: Sun 12pm, Sun 3pm, Sun 1pm.
r/space rules
- 1.
Submissions must be related to Space/Cosmology
This includes "circlejerky" submissions or space-related art, with the exception of art from space agencies or historically-significant art.
- 2.
No sensationalist/misleading/unscientific content or titles
Post titles need to be descriptive and non-clickbait. When submitting images titles need to accurately describe the content of the image (e.g. if an image is a composite this needs to be clearly stated), and without attempting to draw in upvotes or comments. The image should stand on it's own.
- 3.
No spam/blogspam/paywalled/pirated content
This also means that news articles should be a top-level source.
- 4.
No petitions/surveys/crowdfunding
News articles about space-related crowdfunding campaigns are allowed, but direct links to crowdfunding campaigns, petitions or surveys are not allowed.
- 5.
No social media links
No social media links such as Facebook, Instagram, Twitter, etc. Exception: Twitter links are allowed for breaking news by official sources. This does not include YouTube videos, which are allowed as long as they follow the other rules.
- 6.
No duplicate or re-hosted content
- 7.
Images are only allowed on Sunday UTC
Images, gifs, and gif-like videos (those under 2 minutes and which don't rely on sound) are permitted only on Sundays UTC. Please no DALL·E mini or other AI generated images.
- 8.
No low-effort or meme images are permitted at any time.
- 9.
If an image is not OC you must give credit to the original photographer.
This applies even if the source is a space agency such as NASA or ESA.
- 10.
No low-effort/meme/joke/troll/insult comments
- 11.
No unscientific or anti-scientific comments
- 12.
Straightforward questions belong in the Space Questions Thread
Straightforward questions (who/what/where) belong to the Weekly Space Questions thread (pinned at the top).
- 13.
Please limit yourself to no more than 5 submissions per 24 hour period.
- 14.
No AI generated content
This includes both AI generated images/artwork and text generated by tools such as ChatGPT. Articles and videos that are obviously AI generated will also be removed.
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