LifeExtinction is a fact of life. Could we stop it – or even reverse it? The fossil record tells us extinctions happen all the time. The question is what part we play – and whether we could ever bring back creatures like the dinosaurs Features
LifeWhy the hunt for alien life is under way far beneath Earth's surfaceMicrobes that breathe sulphur could redefine what it means to be alive and provide clues about what organisms may lurk in the cosmosFeatures