Skip to content
Answering Your Questions About Reactor: Right here.
Sign up for our weekly newsletter. Everything in one handy email.

Defining Our Terms: What Do We Mean by “Hard SF”?

Hard Science Fiction

Photo of an aurora as seen from space.

Defining Our Terms: What Do We Mean by “Hard SF”?

Comment number: 78

Hal Clement at 100: Five Favorites From a Master of SF

Why Greg Egan Is Science Fiction’s Next Superstar

Comment number: 6

Five Works of Hard Science Fiction That Bypass the Gatekeepers

Comment number: 38

SF Novels That Get Special Relativity All Wrong

Comment number: 66

Five Worldbuilding Errors That Should Be Banished from SF Forever

Comment number: 141

Hard Science, Dizzying Scope: Vacuum Diagrams by Stephen Baxter

Comment number: 10

Classic Sci-Fi Star Systems Keep Getting Ruined by Science

Comment number: 22

How SciFi Can Solve the Problem of Red Dwarf Stars

Comment number: 54

Creator of Worlds: Mission of Gravity by Hal Clement

Comment number: 15

Cities in Flight: James Blish’s Overlooked Classic

Comment number: 33

Tomorrow’s Kin

Comment number: 6