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r/askastronomy

178.8K members. The best post we have captured here reached 23.9K upvotes, which works out to 134 per 1,000 members.

134peak upvotes per 1,000 members
178.8Kmembers
23.9Kbest post
1.9Kmost comments
198posts we track

Open r/askastronomy on Reddit β†—

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.

42% 19% 14% 13% 10%
Image 42% Gallery 19% Question 14% Text 13% Video 10% Link 4%

The topics it labels

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

Astronomy 28 What did I see? 12 Black Holes 5 Planetary Science 2 Sci-Fi 1

What the ceiling looks like

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

What is this? Lasted about 5 mins

↑ 23.9K πŸ’¬ 667 gallery 2025

Saw on a flight from korea to philippines on oct. 16 does amyone know name of what it is?

↑ 12.5K πŸ’¬ 240 image 2024

This has been above my house for about 5 months. What is it?

↑ 11.3K πŸ’¬ 775 gallery 2024

why does only one side have the large dark patches?

↑ 8.9K πŸ’¬ 521 image 2026

Blackhole Speculation

↑ 8.6K πŸ’¬ 598 image 2025

Did I accidently capture another galaxy?

↑ 8.2K πŸ’¬ 243 image 2024

What are these blue stars in the middle?

↑ 7.4K πŸ’¬ 255 image 2024

Anyone know what this is

↑ 7.1K πŸ’¬ 839 gallery 2024

Silly video, but realistically, what would happen if the something this big took the sun.

↑ 4.7K πŸ’¬ 1.4K video 2026

Is this a galaxy on the middle right?

↑ 4.6K πŸ’¬ 130 gallery 2024

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 β†’

Every figure here is what ViralHunt has captured from r/askastronomy, 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 We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong.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.