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r/universe

66K members. The best post we have captured here reached 2.6K upvotes, which works out to 40 per 1,000 members.

40peak upvotes per 1,000 members
66Kmembers
2.6Kbest post
451most comments
100posts we track

Open r/universe 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.

52% 26% 14%
Image 52% Video 26% Question 14% Gallery 3% Text 3% Link 2%

What the ceiling looks like

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

Astronomers photograph the birth of a planet.

↑ 2.6K 💬 18 image 2025

Actual footage from another world: Mars right now, 225 million miles away. Truly mind-blowing rover view

↑ 2.6K 💬 96 video 2026

Double eruption of plasma from the Sun this week

↑ 1.2K 💬 9 video 2025

Why do we always see the same side? (Photo self taken, with editing a bit)

↑ 1.2K 💬 82 image 2025

Low Earth orbit - Great Lakes of North America

↑ 1.1K 💬 19 gallery 2026

3D map of an actual local universe you can fly through, made using real data from cosmic survey 2MRS

↑ 1.1K 💬 61 video 2026

Why does it look so dark in the ripple?

↑ 1.1K 💬 41 image 2025

The Deep Field, by Hubble

↑ 935 💬 54 image 2022

🌌 Our Solar System vs TON 618 — one of the largest black holes ever discovered.

↑ 893 💬 84 image 2025

🔥 A panoramic view from the surface of Mars captured by Curiosity rover.

↑ 781 💬 39 video 2022

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 We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong.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