SpaceLooking back at Viking, the first mission to Mars Forty years ago, the Viking mission set the stage for real science in space – and without a human in sight. The Smithsonian pays tribute Culture
SpaceThe alien world that's being vaporised by a death ray A Mercury-sized exoplanet is being blown apart like a dandelion – and magnetic hotspots on its star could make things worse 51¶¯Âþ