Hard SF Novels
Explore the best hard SF novels—rigorous, science-driven stories that challenge the mind. Discover top picks from masters like Arthur C. Clarke, Greg Egan, and more for fans of plausible futurism and cutting-edge concepts.


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Ringworld
by Larry Niven
Winner of the Hugo and Nebula Awards for best novel Four travelers come to the ringworld. . . Louis Wu: human and old; bored with …


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Spider Star
by Mike Brotherton
""The Spider Star is no star, and the Spider Star is no planet, but it is a place anyway, and its golden heart is the …

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Star Dragon
by Mike Brotherton
An astounding new talent takes readers on a thrilling journey to the heart of a star. "A dramatic, provocative, utterly convincing hard-science sf novel that …
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Signal to Noise
by Eric S. Nylund
Jack Potter puts computer cryptography to work for the highest bidder: sometimes for private corporations, sometimes for the government. Sometimes the work is legal; if …



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Rendezvous With Rama
by Arthur Charles Clarke
During the twenty-second century, a space probe's investigation of a mysterious, cylindrical asteroid brings man into contact with an extra-galactic civilization

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Contact
by Carl Sagan
In December, 1999, a multinational team journeys out to the stars, to the most awesome encounter in human history. Who -- or what -- is …

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The Forever War
by Joe W. Haldeman
Private William Mandella is a hero in spite of himself. He never wanted to go to war, but the leaders on Earth have drawn a …

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Mars Crossing
by Geoffrey A. Landis
By the middle of the 21st century, humanity has finally landed men on Mars-only to watch helplessly as the first two missions end in catastrophe …
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Dragon's Egg
by Robert L. Forward
“In science fiction there is only a handful of books that stretch the mind—and this is one of them.”—Arthur C. Clarke In a moving story …

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Redshift Rendezvous
by John E. Stith
The murder of a passenger aboard the hyperspace liner Redshift leads to a crisis in which a desperate group of people tries to use the …