The Shenzhou X spacecraft, which will be launched between June and August, has completed testing and on Sunday left Beijing for the Jiuquan Satellite Launch Center in Gansu province.

On its mission, it will carry three astronauts and dock with the orbiting Tiangong-1 lab module.

Tiangong-1 was launched in September 2011 and docked with the unmanned Shenzhou VIII that year and with the manned Shenzhou IX in 2012.