China successfully launched the Tianzhou-7 cargo spacecraft atop a Long March-7 Y8 carrier rocket from the Wenchang Spacecraft Launch Site in the southern Chinese island province of Hainan on Wednesday. What are the cargo ship's highlights? CGTN reporter Zhao Chenchen spoke with Yang Yuguang, the vice chair of the Space Transportation Committee from the International Astronautical Federation ahead of the launch. Find out more in this video!