ChemistryHow science can help you whip up perfect egg whites for your bakes Egg whites are key to so many baked goods but can be tricky to work with. These tips will help you master the technique, says Catherine de LangeRegulars
SpaceWe live in a cosmic void so empty that it breaks the laws of cosmology Mounting evidence suggests our galaxy sits at the centre of an expanse of nothingness 2 billion light years wide. If so, we may have to rethink our understanding of the universe Features