Hard Science Fiction
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Carlucci’s Edge
Richard Paul Russo
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Carlucci’s Heart
Richard Paul Russo
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Time Enough for Love
Robert A. Heinlein
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Mars, Inc.
Ben Bova
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Lightning Fall
Bill Quick
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City at the End of Time
Greg Bear
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Dark Matter
William H. Keith
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Hieroglyph
Ed Finn
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Far Futures
Greg Bear
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The Martian Race
Gregory Benford
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The Sunborn
Gregory Benford
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Heart of the Comet
David Brin
