About r/sciencememes
Community guide
r/sciencememes (#250, about 3.9 million) is for science memes (description empty). Rules require science-meme fit, ban unmarked NSFW, reposts, jerks, vote manipulation, spam, and privacy violations. Image/Video (~9.6 ppd).
Science-coded humor
Posts should be science memes—not generic joke images with a lab coat pasted on.
Safety and civility
Mark NSFW; no spam or vote games; don’t expose private people.
Practical pointers
Sample flairs span Biology, Physics, Chemistry, Math—match the discipline vibe when flairing.
SubMouse Editorial
Among the 20 communities on our science list it is number 6 by size. It sits just behind r/kpop (#249) and ahead of r/comics (#251) in our ranking.
What sets r/sciencememes apart
Compared with other large communities, r/sciencememes leans heavily on images (89% of recent posts; the typical Top 100 subreddit sits at 17%). Growth has more or less levelled off (0.02% since Oct 29, 2026), which is common for very mature communities.
Subscriber growth
Between Oct 29, 2026 and Nov 2, 2026, r/sciencememes went up from 3,894,898 to 3,895,513 subscribers (+615, +0.02%). That is about 154 new members per day. The chart uses our weekly snapshots (2 so far), so it gets longer every week.
What r/sciencememes talks about
Across 70 recent posts (Oct 29–Nov 4), the words that come up most are “meme”, “heisenberg”, “marriage”, “wild” and “true”. Other frequent themes are rayleigh, scattering, hitting, different, hard and biology. Recurring phrases include “heisenberg marriage”, “rayleigh scattering”, “hitting different” and “ingest caffeine”. By format, 89% are images and 11% are videos.
Popular post flairs: 🦩Biology!🧫 (12), 💥Physics!🧲 (10), 🪩Science!!🪩 (9), 🧪Chemistry!⚗️ (2), 📐Math!🥧 (2), 🌖Astronomy!🌔 (2).
Activity and best time to post
r/sciencememes gets about 9.6 new posts a day. The public archive holds 71,482 posts and 1,002,471 comments in total, about 14.0 comments per post. Last week the busiest day was Friday (15 posts) and the quietest was Monday (5). Posting peaks around 08:00 UTC and is lowest around 04:00 UTC.
Rules of r/sciencememes
The moderators of r/sciencememes list 7 rules. In short:
- SCIENCE MEMES
- NO REPOSTS
- DON’T BE A JERK
- NO UNMARKED NSFW
- NO VOTE MANIPULATION
- NO SPAM
- PRIVACY
How to join
Open reddit.com/r/sciencememes and press “Join”. Read the community rules in the sidebar before you post: every subreddit is run by its own volunteer moderators.
Frequently asked questions
How many subscribers does r/sciencememes have?
r/sciencememes has 3,895,513 subscribers (Nov 2, 2026), which makes it the #250 safe-for-work subreddit in the SubMouse ranking. It added 615 members between Oct 29, 2026 and Nov 2, 2026.
Is r/sciencememes still active?
Yes. r/sciencememes gets about 9.6 new posts a day (average of the last four weeks). Over its lifetime the archive counts 71,482 posts and 1,002,471 comments. In a sample of 70 recent posts we counted 47 different authors.
What is the best time to post in r/sciencememes?
Based on post counts from Oct 29, 2026 to Nov 4, 2026, the busiest day was Friday and the quietest Monday, and most posts arrive around 08:00 UTC, with the fewest around 04:00 UTC. More posts also means more competition, so a quieter hour can help a post get noticed.
What kind of posts are on r/sciencememes?
r/sciencememes is a large Reddit community. Recent post titles often mention meme, heisenberg, marriage, wild and true. Most posts are images (89%).
Is r/sciencememes SFW?
Yes. Reddit does not mark r/sciencememes as an 18+ (NSFW) community, and its own rules forbid NSFW content. SubMouse lists safe-for-work subreddits only.
What are the rules of r/sciencememes?
Join the community on Reddit first, then use “Create post”. r/sciencememes accepts both text and link posts, with images, videos, galleries and polls enabled. It has 7 posted rules, starting with: “SCIENCE MEMES”; “NO REPOSTS”; “DON’T BE A JERK”. Moderators remove posts that break the rules, so read them in the sidebar before posting.
What subreddits are similar to r/sciencememes?
Communities with similar topics include r/memes (36.1M), r/FunnyAnimals (8.7M), r/lifehacks (14.6M), r/funny (67.6M) and r/BlackPeopleTwitter (6.3M).
Stats from public data (data updated Nov 2, 2026; activity, rules and archive totals via the Arctic Shift archive, Nov 6, 2026). Point and comment counts are archive snapshots and can be lower than on Reddit today. SubMouse is an independent directory and is not affiliated with Reddit or the moderators of r/sciencememes.