← All communities
Reddit community

r/PhysicsNSFW

This community is private, banned or no longer exists on Reddit. The numbers below are what we captured while it was public.

3.2M members. The best post we have captured here reached 31.5K upvotes, which works out to 10 per 1,000 members.

10peak upvotes per 1,000 members
3.2Mmembers
31.5Kbest post
1Kmost comments
1.8Kposts we track

Open r/Physics on Reddit ↗

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

24% 22% 22% 15% 10%
Text 24% Image 22% Question 22% Link 15% Video 10% Gallery 7%

The topics it labels

Flairs are the community's own categories, and the closest thing a subreddit has to telling you what it wants.

Image 74 Question 47 Video 10 Meta 10 News 6 Academic 4 NO REPOSTS! 1 Autoplaying Video Warning 1 Discussion 1 Neat 1

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

Physicist Stephen Hawking dies aged 76

↑ 31.5K 💬 454 link 2018

Never thought this would happen in a million years. My article (and picture) was featured on the cover of Nature.

↑ 28.6K 💬 315 image 2025

My great fear as a physics graduate

↑ 19.7K 💬 479 image 2018

Nobel Prize in Physics laureates announced.

↑ 19.4K 💬 463 image 2025

First image of a black hole

↑ 17.4K 💬 519 image 2019

Passing 30,000 volts through two beakers causes a stable water bridge to form

↑ 17.4K 💬 467 video 2017

What other reason do we need

↑ 16.4K 💬 164 image 2018

Our amazing physics teacher (Mr. Burns) created a visualization of two black holes emitting gravitational waves. Thoughts?

↑ 15.2K 💬 514 video 2018

How is my car being projected on the ceiling?

↑ 14.8K 💬 458 gallery 2025

Uranium emitting radiation inside a cloud chamber

↑ 14K 💬 364 video 2019

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

r/Physics, in numbers

Answered from the posts ViralHunt holds from this community, not from Reddit's own about page.

How many members does r/Physics have?
r/Physics has about 3.2M members. ViralHunt has tracked 1.8K of its posts; the biggest reached 31.5K upvotes, which is 10 per 1,000 members.
What is the most viral post on r/Physics?
"Physicist Stephen Hawking dies aged 76" reached 31.5K upvotes and 454 comments in 2018, the highest score among the posts we hold from r/Physics.
What subreddits are similar to r/Physics?
Communities of a comparable size we track: r/ukraine, r/LosAngeles, r/LeopardsAteMyFace, r/okbuddycinephile, r/blackcats, r/Gamingcirclejerk.
What kind of posts do best on r/Physics?
Of the posts we hold, 24% are text posts and 22% are image posts.
When is the best time to post on r/Physics?
Across 1.8K timestamped posts we hold, the slots whose posts averaged the highest score are Wednesday at 03:00 UTC (4.7K avg upvotes), Sunday at 12:00 UTC (3.6K avg upvotes), Monday at 08:00 UTC (3.3K avg upvotes). The busiest day is Tuesday. For Reddit as a whole, see the best time to post on Reddit page.
How many upvotes does a post need to reach the top of r/Physics?
The 20th-best post we hold from r/Physics has 8.7K upvotes, so that is roughly the bar for the top twenty. We captured 145 posts from it in the last 30 days.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

Start free →

Every figure here is what ViralHunt has captured from r/Physics, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.