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
MathematicsWhy maths, our best tool to describe the universe, may be fallible Our laws of nature are written in the language of mathematics. But maths itself is only as dependable as the axioms it is built on, and we have to assume those axioms are true Features