r/AskScienceFiction peaks Mondays 3pm-5pm UTC
r/AskScienceFiction was created on July 01, 2011, making it 14 years and 11 months old and one of the older subreddits on Reddit. With 885,052 members, this is a mid-size community that has built a substantial following and typically sees consistent daily activity.
r/AskScienceFiction is steadily growing, with 2,162 new members in the last 30 days.
r/AskScienceFiction shows typical engagement for a community of this scale, with an average of 39.9 upvotes per post across its 885,052 members. The community is moderately discussion-oriented, with a comment-to-upvote ratio of 0.5. To reach the Hot section of r/AskScienceFiction, posts typically need at least 7 upvotes, reflecting the community's activity level.
Posts on r/AskScienceFiction receive an average of 19.8 comments, indicating a community with a healthy balance between content appreciation and active discussion. Members regularly engage with posts through both upvotes and comments.
Based on an analysis of 100 top posts from the past week, Monday is the most active day with 18 posts reaching the top, while Sunday sees the least activity with 11 posts. Activity is fairly evenly distributed between weekdays and weekends.
The peak posting hours are around 3pm UTC (9 posts), 6pm UTC (8 posts), and 8pm UTC (8 posts). The quietest hours are 7am UTC, 8am UTC, and 11am UTC, with only 2-1 posts each reaching the top during these times.
Weekly breakdown: Monday (18), Tuesday (12), Wednesday (16), Thursday (12), Friday (14), Saturday (17), Sunday (11) posts reaching the top.
r/AskScienceFiction currently has 885,052 subscribers. Over the past 30 days, the community has grown by 2,162 members (0.24%), averaging 70 new subscribers per day. This growth rate places r/AskScienceFiction in the top 17% of all tracked subreddits.
Over the past 90 days, r/AskScienceFiction has gained 6,568 subscribers (0.75%). Since tracking began 667 days ago, the community has added 25,614 total subscribers. Growth has been accelerating recently compared to the longer-term trend.
r/AskScienceFiction is steadily growing, with 2,162 new members in the last 30 days.
r/AskScienceFiction has 885,052 subscribers as of June 2026.
The best time to post on r/AskScienceFiction is Mondays 3pm-5pm UTC, based on analysis of top-performing posts from the past week.
r/AskScienceFiction is steadily growing, with 2,162 new members in the last 30 days.
r/AskScienceFiction was created on July 01, 2011, making it 14 years old.
Posts on r/AskScienceFiction typically need at least 7 upvotes to reach the Hot section.
r/AskScienceFiction is a Reddit community with 885,052 subscribers. The community describes itself as: "**It's like Ask Science, but all questions and answers are written with answers gleaned from the universe itself.** Use in-universe knowledge, rules, and common sense to answer the questions. Or..." The best time to post on r/AskScienceFiction is Mondays 3pm-5pm UTC. Posts receive an average of 39.9 upvotes and 19.8 comments. The minimum upvotes needed to reach the Hot section is approximately 7. The subreddit is adding approximately 70 new members each day. Founded 14 years ago, r/AskScienceFiction is tracked and analyzed by RedditList as part of its comprehensive database of over 106,360 subreddits.
Last updated: 2026-06-07 02:20:04