Italy's top appeals court acquits Amanda Knox and Raffaele Sollecito of the murder of British student Meredith Kercher in 2007.
The co-pilot suspected of deliberately crashing an airliner into the French Alps knew the region from gliding holidays, people who knew him say.
US astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko arrive for 12-month tour of duty on the International Space Station.
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Australia captain Michael Clarke says he will retire from one-day international cricket after Sunday's World Cup final against New Zealand.