The best new science fiction books of January 2026

Big hitter Peter F. Hamilton has a new sci-fi novel out this month - and Booker winner George Saunders ventures into speculative fiction with his latest book, Vigil Is it an asteroid or an alien in Van Jensen's Godfall? Welcome to January, a month when many of us are keen to escape from the world into the pages of a book. Thankfully, science fiction is here to help, whether that's with a story set on a generation ship where things aren't as they seem, courtesy of Peter F. Hamilton, or journeying to an alternate version of this world where the Roman Empire is still in charge, in Solitaire Townsend's . Add to the mix a time-loop murder, a UFO romance and some eco-horror, and there's plenty of choice for sci-fi fans this month. A generation ship is in search of a new home in Peter F. Hamilton's latest sci-fi novel Big hitter Peter F. Hamilton sets his latest outing on a generation ship in search of a new world, where people are only allowed to live for 65 years so they don't deplete the ship's resources. When a teenager Hazel's brother has an accident that means he is no longer productive, he is set to be killed off.