PhysicsGhost universes kill Schrödinger's quantum cat Quantum weirdness is a sign of many ordinary but invisible universes jostling to share the same space as ours, according to a bold new idea News
PhysicsUntangling physics: Knots in water, light and the sun From our star's excess heat to the complexities of fluid turbulence, many a mystery might be unravelled by the bane of the headphone wearer – knots Features