Interest Stacks

Hard science fiction is a category of science fiction characterized by concern for scientific accuracy and logic. The heart of the "hard science fiction" designation is the relationship of the science content and attitude to the rest of the narrative, and the "hardness" or rigor of the science itself. One requirement for hard SF is procedural or intentional: a story should try to be accurate, logical, credible and rigorous in its use of current scientific and technical knowledge about which technology, phenomena, scenarios and situations that are practically or theoretically possible. For example, the development of concrete proposals for spaceships, space stations, space missions, and a US space program in the 1950s and 1960s influenced a widespread proliferation of "hard" space stories

(Note: not all of these works are considered hard sci-fi, but I decided to put them here due to them being potentially interesting to people that love logical space-themed stories as much as I do)