PhysicsFirst working nuclear clock heralds a new era in timekeeping A clock based on radioactive thorium atoms realises a long-held ambition, demonstrating a technology that could eventually beat the accuracy of today’s best atomic clocks News
PhysicsDoes gravity create reality? A shocking path to a theory of everything A rewrite of quantum mechanics that includes the force of gravity could finally achieve one of physicists’ biggest goals and reveal the ultimate fuzziness of time Features