Skip to content
Subreddit Directory

Best subreddits for science enthusiasts, researchers, and the science-curious

Reddit's science communities translate research papers into accessible discussions and filter scientific news through audiences that can evaluate the methodology.

Science Reddit spans accessible popularization communities that translate complex findings to general audiences, and specialized discipline communities where researchers and experts discuss technical developments with uncommon depth. These communities serve a critical function in science communication: evaluating media coverage of studies, contextualizing new findings within existing literature, and identifying when results are overstated. For scientific publishers, research institutions, and STEM education brands, these subreddits represent an audience with high scientific literacy and genuine enthusiasm for discovery. Discipline-specific communities like r/space, r/chemistry, and r/geology go deeper into a single field than r/science or r/askscience attempt to, trading breadth for the kind of specialist scrutiny only a dedicated audience provides.

8 subredditscurated for ScienceMember counts are rounded and change daily.

Written by the GrowReddit team

How we know this+

This guidance reflects how our team actually works on Reddit. We research subreddits by hand, read each community's posting rules and moderator guidelines before recommending it, and spend time reading threads to understand the tone and what genuinely earns upvotes. Our recommendations favour community-first participation, useful posts and honest comments, over promotional shortcuts. Subreddit rules change, so re-read a community's current rules before you post.

Top Science subreddits by member count
1

r/science

32M+ members
Strict moderation

The largest science community on Reddit, covering peer-reviewed research across disciplines. Unique among Reddit communities for requiring scientists to verify their credentials before commenting with professional expertise. This creates a high standard of accuracy in the most-visible responses.

Best content types

Peer-reviewed research discussionsStudy methodology evaluationCross-disciplinary implicationsScientist AMA threads

Posting tip

Lead with the most surprising finding and link to the actual paper, not media coverage: the community will discuss the methodology, so linking to primary sources builds credibility.

2

r/askscience

22M+ members
Strict moderation

Science Q&A community where complex scientific questions receive detailed, expert-verified answers. Panel structure means responses from verified scientists receive prominent display. Excellent for understanding nuanced scientific topics that general media oversimplifies.

Best content types

Complex scientific questionsClarification of counterintuitive findingsMechanism and process explanationsCurrent research frontiers

Posting tip

Ask questions that reveal the depth of your curiosity, "Why does X happen in situation Y but not Z?" demonstrates engagement and attracts more detailed responses than surface-level questions.

3

r/Physics

2.6M+ members
Moderate moderation

Physics community covering classical mechanics, quantum physics, cosmology, and theoretical developments. Wide range from introductory questions to cutting-edge research discussion. Active homework help culture alongside serious research discussion, well-moderated to maintain both uses.

Best content types

Conceptual physics explanationsRecent research discussionPhysics visualization sharesCareer and education questions

Posting tip

Post thought experiments or counterintuitive physics questions that have clean, elegant answers, this community loves demonstrating where intuition breaks down and physics prevails.

4

r/biology

990K+ members
Moderate moderation

Biology community covering genetics, evolutionary biology, ecology, cell biology, and life sciences. Research and education-focused with active discussion of new papers and textbook concepts. Medical adjacent posts are common but the community maintains focus on fundamental biology rather than clinical applications.

Best content types

Research paper discussionsEvolutionary biology conceptsCell and molecular biology explanationsEcology and environment topics

Posting tip

Share research findings with a plain-language explanation of why the mechanism matters, connecting technical findings to their broader biological significance is what drives engagement here.

5

r/EverythingScience

440K+ members
Moderate moderation

Broader science community that welcomes a wider range of scientific content than the stricter r/science. More accessible and less gatekept: science-adjacent articles, science communication pieces, and interesting blog posts about research are welcome alongside peer-reviewed work.

Best content types

Science communication piecesMulti-disciplinary research linksScience history and contextAccessible research summaries

Posting tip

Share accessible explainers of complex scientific topics with a personal note on what surprised you, this community values the sense of discovery alongside the information itself.

6

r/space

27M+ members
Moderate moderation

One of Reddit's largest science-adjacent communities, covering space exploration, astronomy, astrophysics, and planetary science for a broad, enthusiastic audience. Less formally moderated than r/science's credential-verification system, but still a high-engagement source for space news, mission updates, and astrophotography.

Best content types

Space mission and launch newsAstrophotography sharesAstrophysics and cosmology explainersSpace agency AMA threads

Posting tip

Time posts around actual mission milestones or launches for the widest reach, the community engages heavily with real-time space events but is less responsive to evergreen explainer content.

7

r/chemistry

700K+ members
Moderate moderation

General chemistry community spanning students, educators, and working chemists, covering everything from homework help to research discussion and lab safety. Broader and more casual than specialized subfield communities, functioning as the default gathering place for chemistry-adjacent conversation on Reddit.

Best content types

Lab and experiment showcasesHomework and coursework helpResearch and career discussionChemical safety and hazard questions

Posting tip

Post lab photos or experiment results with the actual chemistry explained, not just a visually striking reaction, the community engages far more with posts that teach something alongside the spectacle.

8

r/geology

290K+ members
Moderate moderation

Community for geology students, professionals, and rock and mineral enthusiasts covering field identification, career questions, and earth science news. Smaller and more identification-request-heavy than other science subreddits, with members regularly posting photos asking what specific rock or mineral they have found.

Best content types

Rock and mineral identification requestsField trip and outcrop photo sharesCareer and geology program questionsEarth science news discussion

Posting tip

Include a scale reference and multiple angles when posting a rock or mineral for identification, the community can identify far more accurately with good photos than with a description alone.

Frequently asked questions

What is the difference between r/science and r/askscience?

r/science is built around discussing peer-reviewed research submissions, with a unique system that verifies commenting scientists' credentials to keep expert responses visible. r/askscience is Q&A-formatted, letting anyone ask a scientific question and receive a detailed, expert-vetted answer through a panel of verified specialists. Someone wanting to discuss a specific new study fits r/science, while someone with a standalone "why does X happen" question gets a more direct answer from r/askscience.

Is r/space more useful for professional astronomers or casual space enthusiasts?

The community skews toward casual enthusiasts and space news followers rather than professional researchers, since it is less formally moderated than r/science's credential-verified format. It remains genuinely useful for mission updates, launch coverage, and astrophotography, and members with real expertise do participate, but the average post assumes less technical background than r/Physics or r/askscience. Someone wanting research-level astrophysics discussion is better served by more specialized communities.

Where should someone post a rock or mineral they found for identification?

r/geology is the dedicated community for this, with a culture built specifically around identification requests and members experienced enough to identify most common finds from clear photos. Including a scale reference and the general location where it was found meaningfully improves the accuracy of the identification. A smaller, more specialized mineralogy community is a useful alternative if the question is specifically about crystal structure rather than general rock identification.

What is the advantage of r/EverythingScience over r/science for a science communicator sharing an article?

r/EverythingScience welcomes a wider range of content than r/science's peer-reviewed-research focus, including science communication pieces, accessible explainers, and interesting blog posts about research rather than only primary studies. This makes it a better fit for a well-written accessible article that would get removed from r/science for not linking directly to a paper. r/science remains the better venue when the underlying source is itself a peer-reviewed study, since its credential-verification system is what gives its discussion threads unusual credibility.

Keep exploring

More subreddit playbooks beyond Science

Closely related topics, plus the matching industry playbook if you're picking subreddits with a buyer in mind.

Hub

Browse all 50+ subreddit lists

Curated subreddit directories across every topic.

Open Service

GrowReddit managed Reddit services

Done-for-you strategy, content, ads, and reputation programs run by our team.

Open Regional playbook

Reddit marketing in the United States

US-specific subreddit culture, content angles, and compliance notes.

Open Compare

Compare Reddit vs other platforms

Reddit vs Facebook, LinkedIn, and Twitter/X for B2B growth.

Open Compare

Reddit vs Newsletter Marketing

How Reddit compares with Newsletter Marketing for reaching and converting buyers.

Open Industry playbook

Reddit Marketing for SaaS

The core SaaS playbook this site is built around.

Open

Book Your Reddit Strategy Session

Schedule a complementary strategy session. Discover how we help brands tap into Reddit's hundreds of millions of weekly active users through authentic engagement and community-first campaigns.