SpaceI'll put millions of people on Mars, says Elon Musk The swashbuckling SpaceX founder says that he can get to Mars on a shoestring within 20 years – thanks to the fully reusable rockets he's determined to build Features
HealthDNA death predictors: What do they really tell you? Genetic tests lay odds on killer diseases, and now a "health check" for your chromosomes spots traits that could reveal your lifespan – if it really works Features