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India plans to launch a second mission to the Moon, aiming to land the Chandrayaan-2 craft in a crater, to learn more about the origins of the solar system. It comes just months after China landed a craft on the dark side of the Moon. Professor Becky Smethurst, an astrophysicist from the University of Oxford, tells the Â鶹Éç's Russell Padmore how India's space agency compares with its Chinese rival. (Picture: The Moon. Getty Images)