On March 23, the second lesson of "Tiangong Classroom" was held at the Chinese Space Station.

Shenzhou 13 crew astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu will cooperate with each other to give lectures.

In the space parabolic experiment, a special teaching assistant came: Bing Dundun.

In the space station, after being thrown by Wang Yaping, Bing Dundun still moved forward at a constant speed in the original direction.

(Produced by Liu Yinghan)

Responsible editor: [Li Yuxin]