SpaceThe moon may have formed in a vaporised, doughnut-shaped Earth Early Earth may have been smashed into a vapour by a Mars-sized object. Our moon may have formed at the edges of the leftover doughnut-shaped cloud of debris News
SpaceSpaceX Falcon Heavy rocket test is the start of a race to Mars The imminent first flight of Elon Musk's giant new rocket could mark a spectacular start to a new era in space flight, says Paul Marks Comment