EnvironmentWe're finally solving the puzzle of how clouds will affect our climate Clouds can trap heat or reflect it away from Earth, making their impact on global warming extraordinarily hard to predict. Now, new ways of studying them are lifting the fog Features
EarthSee a dazzling collection of the year's best northern lights pictures This spectacular selection of images is taken from the winners of the Northern Lights Photographer of the Year competition, run by Capture the Atlas Regulars