HealthWe now know how much our genes influence the risk of contracting HIV A study of 13,000 people suggests that genetics strongly shapes how likely you are to contract HIV if you are exposed to the virus News
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