The US has carried out an air strike in support of Iraqi troops under attack by Islamic State, the military says, the first under an expanded mission.
Chinese online giant Alibaba increases the price range of its initial public offering, meaning it could raise more than $25bn when it lists in New York.
Gabriel Gatehouse reports from northern Iraq, where Peshmerga fighters say they need new weapons to fight Islamic State jihadists.
When you move up the ladder, mistakes are inevitable. Avoid the worst of them
By using a giant 3D printer, one company can create concrete buildings in as little as a day - and Nasa is looking at using the technology to build bases on the Moon and Mars.
Thomas Keller is one of the most highly lauded chefs in America - but when he leaves the kitchen, his second passion is on the road.
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