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摘要

Europe and Russia's joint mission to the Red Planet is under way. The ExoMars Trace Gas Orbiter launched from the Baikonur Cosmodrome in Kazakhstan at 0931 GMT on 14 March. It should arrive on 19 October, when it will try to understand Mars's atmosphere and search for hints of biological and geological activity. "The answer to that question is certainly yes." said Jeff Miller, the National Football League's health and safety policy chief, at a congressional hearing on Monday, when asked if American football is linked with chronic traumatic encephalopathy. It is the first time a top NFL official has publicly admitted a link between the sport and the degenerative brain disorder.