Sign in with Facebook
to-read
(131)
currently-reading (2)
read (699)
scifi (485)
military-scifi (341)
space-ships (177)
spess-mahrines (146)
harder-scifi (123)
ai (95)
currently-reading (2)
read (699)
scifi (485)
military-scifi (341)
space-ships (177)
spess-mahrines (146)
harder-scifi (123)
ai (95)
space-opera
(75)
adventure (53)
hard-science-fiction (52)
futurology (47)
military (26)
alt-history (22)
thriller (21)
childhood-book (14)
dystopian (14)
adventure (53)
hard-science-fiction (52)
futurology (47)
military (26)
alt-history (22)
thriller (21)
childhood-book (14)
dystopian (14)
Hard SF
— 1181 members
— last activity Dec 30, 2025 01:03AM
This is a discussion group for this specific subgenre in SF where the plausibility of the science counts.
Dan’s 2025 Year in Books
Take a look at Dan’s Year in Books, including some fun facts about their reading.
502 books
|
100 friends
1,071 books
|
299 friends
5,370 books
|
134 friends
2,448 books
|
260 friends
247 books
|
192 friends
311 books
|
22 friends
589 books
|
45 friends
417 books
|
218 friends
More friends…
Favorite Genres
Polls voted on by Dan
Lists liked by Dan
