SF Supernova

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Hard SF

Rigorous scientific speculation.

521 titles

Often paired with
Social SF 129Space Opera 121Adventure 68First Contact 35Horror 32Post-Apocalyptic 22
Peaks in
1950s1940s1960s1930s1890s
Explored most by
Jules VerneGeorge O. SmithH. G. WellsLuis SenarensMurray LeinsterE. E. SmithMary Wollstonecraft ShelleyRay Cummings
See it mapped
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Of Stegner's Folly
Cover of Of Stegner's Folly by Richard S. Shaver
Of Stegner's Folly
Richard S. Shaver · 1952
18 min read
Hard SFPost-Apocalyptic
Off on a Comet! a Journey through Planetary Space
Cover of Off on a Comet! a Journey through Planetary Space by Jules Verne
Off on a Comet! a Journey through Planetary Space
Jules Verne · 1877
~7 hr read
AdventureHard SF
Off the Beam
Cover of Off the Beam by George O. Smith
Off the Beam
George O. Smith · 1944
53 min read
Hard SFSpace Opera
Omega: The Last days of the World
Cover of Omega: The Last days of the World by Camille Flammarion
Omega: The Last days of the World
Camille Flammarion · 1893
3 hr 21 min read
Hard SFPost-Apocalyptic
Omnilingual
Cover of Omnilingual by H. Beam Piper
Omnilingual
H. Beam Piper · 1957
1 hr 3 min read
First ContactHard SF
On Handling the Data
Cover of On Handling the Data by M. I. Mayfield
On Handling the Data
M. I. Mayfield · 1957
14 min read
Hard SFSocial SF
One of three
Cover of One of three by George O. Smith
One of three
George O. Smith · 1948
2 hr 52 min read
First ContactHard SF
One-Shot
Cover of One-Shot by James Blish
One-Shot
James Blish · 1955
21 min read
Hard SFSocial SF
Operation Interstellar
Cover of Operation Interstellar by George O. Smith
Operation Interstellar
George O. Smith · 1950
3 hr 49 min read
Hard 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
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
Over the border
Cover of Over the border by Morgan Robertson
Over the border
Morgan Robertson · 1914
4 hr 53 min read
AdventureHard SF
Ozymandias
Cover of Ozymandias by Ivar Jorgensen
Ozymandias
Ivar Jorgensen · 1958
27 min read
Hard SFSocial SF
PRoblem
Cover of PRoblem by Alan Edward Nourse
PRoblem
Alan Edward Nourse · 1956
23 min read
Hard SFSocial SF
Pandemic
Cover of Pandemic by Jesse F. Bone
Pandemic
Jesse F. Bone · 1962
30 min read
Hard SFPost-Apocalyptic
Pandora's Millions
Cover of Pandora's Millions by George O. Smith
Pandora's Millions
George O. Smith · 1945
48 min read
Hard SFSocial SF
Pangborn's paradox
Cover of Pangborn's paradox by David Mason
Pangborn's paradox
David Mason · 1958
7 min read
Hard SFTime Travel
Parking, unlimited
Cover of Parking, unlimited by Noel M. Loomis
Parking, unlimited
Noel M. Loomis · 1950
15 min read
Hard SFSocial SF
Patch
Cover of Patch by William Shedenhelm
Patch
William Shedenhelm · 1950
12 min read
Hard SFSpace Opera
Perfect Answer
Cover of Perfect Answer by Jr. L. J. Stecher
Perfect Answer
Jr. L. J. Stecher · 1958
18 min read
Hard SFSpace Opera
Peril Orbit
Cover of Peril Orbit by C. J. Wedlake
Peril Orbit
C. J. Wedlake · 1949
10 min read
Hard SFSpace Opera
Peter Merton's private mint
Cover of Peter Merton's private mint by Harlan Ellison
Peter Merton's private mint
Harlan Ellison · 1956
22 min read
Hard SFSocial SF
Pictures Don't Lie
Cover of Pictures Don't Lie by Katherine MacLean
Pictures Don't Lie
Katherine MacLean · 1951
29 min read
First ContactHard SF
Pioneers of space
Cover of Pioneers of space by George Adamski
Pioneers of space
George Adamski · 1949
4 hr 10 min read
Hard SFSpace Opera

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