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An exercise in pure mathematics has led to a wide-ranging theory of how the world comes together.
Renormalization has become perhaps the single most important advance in theoretical physics in 50 years.
Physicists have identified an algebraic structure underlying the messy mathematics of particle collisions. Some hope it will lead to a more elegant theory of the natural world.
Einstein’s equations describe three canonical configurations of space-time. Now one of these three — important in the study of quantum gravity — has been shown to be inherently unstable.