PhysicsQuantum to cosmos: Why scale is vital to our understanding of reality From the vastness of the universe to the infinitesimal particles that comprise it, extremes of scale defy comprehension – and present a problem for physicists seeking a unified theory of everything Features
PhysicsFusion reactors could create ingredients for a nuclear weapon in weeks Concern over the risks of enabling nuclear weapons development is usually focused on nuclear fission reactors, but the potential harm from more advanced fusion reactors has been underappreciated News