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Parts of the structure are younger than expected while an east wind blows the whole thing across the desert, researchers findThey are impressive, mysterious structures that loom out of deserts on the Earth and are also found on Mars and on Saturn’s biggest moon, Titan.Experts from universities including Aberystwyth in Wales have now pinpointed the age of a star dune in a remote area...

Team at Imperial College London say techniques could be used to flag warning signs during surgeryIt is a high-stakes scenario for any surgeon: a 65-year-old male patient with a high BMI and a heart condition is undergoing emergency surgery for a perforated appendix.An internal bleed has been detected, an anaesthetics monitor is malfunctioning and various bleepers are sounding – before an urgent call comes...

Report says Xiangguo Qiu secretly worked with Wuhan Institute for Virology and posed a ‘threat to Canada’s economic security’A leading research scientist at Canada’s highest-security laboratory provided confidential scientific information to Chinese institutions, met secretly with officials and posed “a realistic and credible threat to Canada’s economic security” according to newly released intelligence reports.The dismissal of Xiangguo Qiu and her husband, Keding Cheng, has...

Professor Dietmar Müller points to carbonates overlying glacial deposits in the Flinders Ranges. Photo: Dr Adriana Dutkiewicz Co-author Professor Dietmar Müller from the University of Sydney said: "Geology ruled climate at this time. We think the Sturtian ice age kicked in due to a double whammy: a plate tectonic re...