← All communities
Reddit community

r/sciencefiction

314.7K members. The best post we have captured here reached 17.1K upvotes, which works out to 54 per 1,000 members.

54peak upvotes per 1,000 members
314.7Kmembers
17.1Kbest post
4.5Kmost comments
199posts we track

Open r/sciencefiction 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.

46% 21% 14% 11%
Image 46% Text 21% Video 14% Question 11% Gallery 6% Link 3%

What the ceiling looks like

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

What do you consider peak science fiction? The best of the best?

↑ 17.1K 💬 4.5K image 2024

Time travel is more complicated than you think

↑ 5.7K 💬 346 image 2025

Equilibrium (2002) "Not without incident".

↑ 5.4K 💬 588 video 2024

Corporate America aids criminals while privatizing the police force

↑ 5.3K 💬 50 image 2025

During the day of the filming of this scene in Alien (1979), a crew member asked Ridley Scott why there was water dripping inside a spaceship to whic…

↑ 5K 💬 204 image 2026

What quotes from science fiction could we learn from in the "real" world?

↑ 4.5K 💬 222 image 2025

Gunbuster is the first sci-fi animation I've ever see portray accurate extreme-range combat, with Laser weaponry Firing on Targets 1.8 Light-Seconds …

↑ 4K 💬 153 video 2026

Aliens Won’t Bother Contacting Earth, There’s No Sign Of Intelligence, Fermi Paradox Solution Suggests

↑ 3.4K 💬 319 link 2025

I have no idea what to read, but I’d like to know what not to read.

↑ 3.3K 💬 1.4K image 2025

After seeing both

↑ 3.3K 💬 312 image 2025

Communities its size

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

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/sciencefiction, 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 We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong.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.