About r/askscience
r/askscience is one of the largest safe-for-work communities on Reddit, ranked #20 on SubMouse with 26,381,450 subscribers.
In its own words:
Ask a science question, get a science answer.
The community was created on Sep 5, 2008, which makes it 18 years old. Since Oct 19, 2026, it has gained 3,912 subscribers (+0.02%). It sits just behind r/videos (#19) and ahead of r/nottheonion (#21) in our ranking.
How to join
Open reddit.com/r/askscience and press “Join”. Read the community rules in the sidebar before you post: every subreddit is run by its own volunteer moderators.
Stats from public data (data updated Oct 29, 2026). SubMouse is an independent directory and is not affiliated with Reddit or the moderators of r/askscience.