China to launch lunar space probe before year's end

China announced plans on Tuesday to launch a space probe to bring back samples from the moon before the end of the year, in what state media cast as competition to U.S. President Donald Trump's ambitions to revitalise U.S. space exploration.The Chang'e-5 lunar probe is undergoing a final round of tests and is expected to be on standby for launch from August, the official People's Daily said, citing the China National Space Administration.The launch will involve new challenges for China in sample