Last WordThis week’s new questions How does our subconscious mind come up with ideas while we sleep and what determines how quickly a kettle boils? Send your answers to Almost the Last Word and we'll publish our favourites Regulars
PhysicsHow a new twist on quantum theory could solve its biggest mysteryThe "wave function collapse" transforms vague clouds of quantum possibilities into the physical reality we know – but no one knows how. New experiments are finally revealing reality in the makingFeatures