China's first cargo spacecraft Tianzhou-1 is to be launched into space between April 20 and 24 to dock with the orbiting experimental space station. The cargo spacecraft was transferred with a Long March-7 Y2 carrier rocket from the testing centre to the launch zone in Wenchang, southern China's Hainan Province. <br/><br/>China currently is in the process of building permanent station by 2022 to rival Russia's International Space Station. <br/><br/>Tianzhou-1 is the first cargo ship independently developed by the country. It is expected to dock with the orbiting Tiangong-2 space lab and conduct in-orbit refuelling.