Boris takes centre stage
Boris Johnson has become British prime minister promising a speedy Brexit. To do so, he's named top Leave campaigners to key government posts. Also in this edition: the president of Ukraine's party of political newcomers wins a majority in parliamentary elections; Algeria says universities should correspond in Arabic and English, not French; China and Russia mount air patrols together; and we go sailing in space, powered by the sun. (Picture: the new British prime minister Boris Johnson speaking in the House of Commons. Credit: PA)