SF Supernova

The Library

4170 public-domain science-fiction titles

4170 results
Open Invitation
Cover of Open Invitation by H. B. Fyfe
Open Invitation
H. B. Fyfe · 1951
17 min read
First ContactSpace Opera
Operation Boomerang
Cover of Operation Boomerang by George Revelle
Operation Boomerang
George Revelle · 1957
28 min read
Military SFSpace Opera
Operation Distress
Cover of Operation Distress by Lester Del Rey
Operation Distress
Lester Del Rey · 1951
16 min read
ColonizationSpace Opera
Operation Earthworm
Cover of Operation Earthworm by Joe Archibald
Operation Earthworm
Joe Archibald · 1949
23 min read
AdventureSpace Opera
Operation Haystack
Cover of Operation Haystack by Frank Herbert
Operation Haystack
Frank Herbert · 1959
37 min read
Psychic PowersSpace Opera
Operation Interstellar
Cover of Operation Interstellar by George O. Smith
Operation Interstellar
George O. Smith · 1950
3 hr 49 min read
Hard SFSpace Opera
Operation Lorelie
Cover of Operation Lorelie by William P. Salton
Operation Lorelie
William P. Salton · 1953
8 min read
Military SFPost-Apocalyptic
Operation R.S.V.P.
Cover of Operation R.S.V.P. by H. Beam Piper
Operation R.S.V.P.
H. Beam Piper · 1951
16 min read
Military SFSocial SF
Operation Terror
Cover of Operation Terror by Murray Leinster
Operation Terror
Murray Leinster · 1962
2 hr 57 min read
First ContactMilitary SF
Operation: Outer Space
Cover of Operation: Outer Space by Murray Leinster
Operation: Outer Space
Murray Leinster · 1954
3 hr 55 min read
Social SFSpace Opera
Or Darwin, if you prefer
Cover of Or Darwin, if you prefer by Mel Hunter
Or Darwin, if you prefer
Mel Hunter · 1954
15 min read
First ContactSocial SF
Ordeal in Space
Cover of Ordeal in Space by Ralph Sloan
Ordeal in Space
Ralph Sloan · 1949
21 min read
Military SFSpace Opera
Oridin's Formula
Cover of Oridin's Formula by R. R. Winterbotham
Oridin's Formula
R. R. Winterbotham · 1943
12 min read
Hard SFSpace Opera
Orphans of the Void
Cover of Orphans of the Void by Michael Shaara
Orphans of the Void
Michael Shaara · 1952
31 min read
First ContactSpace Opera
Our Town
Cover of Our Town by Jerome Bixby
Our Town
Jerome Bixby · 1955
30 min read
First ContactPost-Apocalyptic
Our Young Aeroplane Scouts in Germany; or, Winning the Iron Cross
Cover of Our Young Aeroplane Scouts in Germany; or, Winning the Iron Cross by Horace Porter
Our Young Aeroplane Scouts in Germany; or, Winning the Iron Cross
Horace Porter · 1915
4 hr 2 min read
AdventureMilitary SF
Our coming world
Cover of Our coming world by Alfred Charles Michaud
Our coming world
Alfred Charles Michaud · 1951
3 hr 35 min read
Social SFUtopia
Out Around Rigel
Cover of Out Around Rigel by Robert H. Wilson
Out Around Rigel
Robert H. Wilson · 1931
34 min read
Hard SFSpace Opera
Out Like a Light
Cover of Out Like a Light by Randall Garrett
Out Like a Light
Laurence M. Janifer & Randall Garrett · 1960
4 hr 17 min read
Psychic PowersSocial SF
Out of Mind
Cover of Out of Mind by William W. Stuart
Out of Mind
William W. Stuart · 1961
27 min read
ColonizationSocial SF
Out of This World
Cover of Out of This World by Henry Hasse
Out of This World
Henry Hasse · 1942
28 min read
AdventureSpace Opera
Out of This World Convention
Cover of Out of This World Convention by Forrest J. Ackerman
Out of This World Convention
Forrest J. Ackerman · 1953
12 min read
Social SF
Out of Time's Abyss
Cover of Out of Time's Abyss by Edgar Rice Burroughs
Out of Time's Abyss
Edgar Rice Burroughs · 1918
2 hr 5 min read
AdventureLost World
Out of nowhere
Cover of Out of nowhere by E. A. Grosser
Out of nowhere
E. A. Grosser · 1941
25 min read
DystopiaTime Travel