r/AskScienceFiction is a subreddit with 892k members. The community frequently discusses looking for, worst, dc, general, and star wars, and they frequently recommend/review sci-fi literature and science fiction.
**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 as **fanlore.org** calls it [Watsonian, not a Doylist point of view](http://fanlore.org/wiki/Watsonian_vs._Doylist)
Popular Topics in r/AskScienceFiction
#1
Looking For
11 posts
#2
Worst
10 posts
#3
Dc
6 posts
#4
General
5 posts
#5
Star Wars
5 posts
#6
Marvel
5 posts
#7
Jojo
2 posts
#8
Superheroes
2 posts
#9
Death Note
2 posts
#10
Worst Father
2 posts
Products Discussed in r/AskScienceFiction
Sci-fi Literature
4 reviews
#1
Joe Haldeman
4.5★ from 2 reviews
#2
Peter Watts
4.0★ from 1 review
#3
Poul Anderson
4.0★ from 1 review
Science Fiction
2 reviews
#1
James S.A. Corey
5.0★ from 1 review
#2
Adrian Tchaikovsky
5.0★ from 1 review
Member Growth in r/AskScienceFiction
Yearly
+22k members(2.6%)
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About
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Last updated: September 17, 2026