PhysicsThe antimatter factory about to solve the universe's greatest mysteryWhy is there something rather than nothing? We’re finally making enough antimatter to extract an answer – and it might reveal the dark side of the universe tooFeatures
PhysicsWhy dark matter's no-show could mean a big bang rethink We can't find any trace of cosmic dark matter – perhaps because our models of the early universe are missing a crucial piece, says astrophysicist Dan HooperFeatures