The best new science fiction books of October 2025

Science fiction legend Ursula K. Le Guin is honoured with a new collection out this month, and sci-fi fans can also look forward to fiction from astronaut Chris Hadfield and award-winning authors Ken Liu and Mary Robinette Kowal Like many of you, no doubt, Ursula K. Le Guin is one of my favourite sci-fi writers. So I am really excited about a collection out this month that brings together the maps she would draw when starting a story, and also celebrates her brilliant and wise writing. Not least because we've just read with the New Scientist Book Club: do come and join us and share your thoughts on this classic novel with fellow fans! The sci-fi out this month looks forward as well as back, though. Ken Liu brings us a thriller set in the near future, and I'm keen to read Megha Majumdar's tale of a flooded Kolkata and a desperate mother.