PhysicsHow materials that rewind light can test physics' most extreme ideas Strange solids called temporal metamaterials finally make it possible to investigate the controversial idea of quantum friction – and push special relativity to its limits Features
CommentThe best new science fiction books of May 2024 A new Stephen King short story collection, an Ursula K. Le Guin reissue and a celebration of cyberpunk featuring writing from Philip K. Dick and Cory Doctorow are among the new science fiction titles published this month Culture