![](http://www.ecns.cn/hd/2021/09/20/48c4f82f49d44a429331d678e179da04.jpg)
The Long March-7 Y4 rocket, carrying Tianzhou-3, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, Sept. 20, 2021. (Photo: China News Service/Luo Yunfei)
China launched cargo spacecraft Tianzhou-3 on Monday to deliver supplies for its under-construction space station.
On Sept. 18, the Tianzhou-2 cargo craft separated from the rear docking port of Tianhe and docked with its front docking port.
![](http://www.ecns.cn/hd/2021/09/20/8857b7410ff94155ac9151171c3156cd.jpg)
The Long March-7 Y4 rocket, carrying Tianzhou-3, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, Sept. 20, 2021. (Photo: China News Service/Luo Yunfei)
![](http://www.ecns.cn/hd/2021/09/20/0ba31b48762749ce849d39555d96cb19.jpg)
The Long March-7 Y4 rocket, carrying Tianzhou-3, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, Sept. 20, 2021. (Photo: China News Service/Luo Yunfei)
![](http://www.ecns.cn/hd/2021/09/20/a40e964634914da58e7102646cf2d563.jpg)
The Long March-7 Y4 rocket, carrying Tianzhou-3, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, Sept. 20, 2021. (Photo: China News Service/Luo Yunfei)
![](http://www.ecns.cn/hd/2021/09/20/3e39a7111e1a41d1b19eb052c700c684.jpg)
The Long March-7 Y4 rocket, carrying Tianzhou-3, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, Sept. 20, 2021. (Photo: China News Service/Luo Yunfei)