PhysicsIs space-time quantum? Six ways to unpick the fabric of the universe One of the biggest questions in physics asks whether space-time is classical or quantum in nature. From slow neutrinos to quantum foam, these experiments are hoping to finally answer it Features
SpaceHow to see the northern lights this winter The northern lights, or aurora borealis, are expected to be stronger than they have been for at least a decade over the next few months. Here is how to spot them 51¶¯Âþ