SpaceThe JWST is already delivering on its promise to transform cosmology Almost a year after its first images were released, the James Webb Space Telescope is living up to the hype, and its price tag, by revolutionising our understanding of the universe Leader
PhysicsNeil Turok on the case for a parallel universe going backwards in time To explain the cosmos without invoking cosmic inflation, physicist Neil Turok has proposed the existence of a mirror-image universe going backwards in time from the big bang. He tells us why the idea is so compelling Features