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8 Most Entertaining Sci-Fi Books of the 21st Century That Are Impossible to Put Down

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Published Oct 27, 2026, 12:52 AM EDT

Get some laughs with psychic cats, friendly aliens, and snarky cyborgs

Image: Ballantine Books

Science fiction writers imagine humanity's future in order to explore our present and past. The best sci-fi is a mix of cautionary tale and social commentary, but books about heady topics like artificial intelligence, alien encounters, and galaxy-spanning wars are often filled with dense explanations of theoretical technologies or complex political factions. It doesn't have to be that way. While dry and heavy sci-fi can be extremely rewarding to read, the genre also offers plenty of lighter options filled with humor and adventure.…

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