The best new science fiction books of October 2025

October 2025 brings exciting new releases in science fiction, including a collection honoring the legendary Ursula K. Le Guin. Fans can also look forward to works from astronaut Chris Hadfield and acclaimed authors Ken Liu and Mary Robinette Kowal. This month is significant for the genre as it showcases both established and emerging voices, promising fresh perspectives and imaginative storytelling that will captivate readers.