China will launch its second heavy-lift rocket on Sunday to put a satellite into orbit. Official sources said the Long March-5 Y2 would be launched from the Wenchang Space Launch Center in China's southern Hainan Province. <br/><br/>In April, China launched its first cargo spacecraft, Tianzhou-1, into space using the country's heaviest Long March-7 Y2 carrier rocket to dock with the orbiting experimental space station which was expected to be operationalised by 2022.