In this photo released by Xinhua News Agency, a Long March 7 rocket carrying the Tianzhou 1 cargo spacecraft blasts off from the Wenchang Space Launch Center in Wenchang in southern China's Hainan Province, Thursday, April 20, 2017. China has launched its first unmanned cargo spacecraft Thursday on a mission to dock with the country's space station. (Photo by Yang Guanyu/Xinhua via AP Photo)
