PhysicsThe fascinating story of the ultimate cosmic law How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the most important numbers in the universe Comment
PhysicsPhysicists are uncovering when nature’s strongest force falters The strong nuclear force may abruptly loosen its grip on the fundamental particles that make up matter at a special “critical point” – researchers are now getting a clearer picture of when that point is reached News