China's first cargo spacecraft Tianzhou-1 blasts off from Wenchang Space Launch Center in south China's Hainan province, April 20, 2017. (Xinhua/Ju Zhenhua)

WENCHANG, Hainan, April 20 (Xinhua) -- China declared the launch of cargo spacecraft Tianzhou-1 a success, as it entered designated orbit Thursday night.

The spacecraft, atop a Long March-7 Y2 carrier rocket, blasted off from the Wenchang Space Launch Center in south China's Hainan Province.