PhysicsTaming nuclear fusion is hard, but there are new reasons for optimism Technological advances, greater investment and growing political interest in addressing climate change mean the dream of harnessing nuclear fusion for energy may finally become a reality Leader
TechnologyMetallic hydrogen would be the ultimate fuel - if we can make it The universe’s most common element could also be its most wondrous. Two different groups of researchers say they've made it - but can either claim withstand scrutiny? Features