China's latest manned spacecraft successfully blasted off Tuesday on a 15-day mission to dock with a space lab and to educate young people about science. The Shenzhou 10 capsule carrying three astronauts lifted off as scheduled at 5:38 p.m. (0938 GMT) from the Jiuquan Satellite Launch Center on the edge of the Gobi Desert, AP reported. It is China's fifth manned space mission and its longest. The spacecraft was launched aboard a Long March 2F rocket and will transport the crew to the Tiangong 1, which functions as an experimental prototype for a much larger Chinese space station to be launched in 2020. The craft will spend 12 days docked with the Tiangong.