Shenzhou-13 astronauts deliver second Tiangong class(1/7)

Students watch a livestreamed lecture given by Chinese astronauts from China's space station Tiangong, at Siyuan Experimental School in Zhangye, northwest China's Gansu Province, March 23, 2022. (Photo/VCG)

The second live class from China's space station was held on Wednesday afternoon, delivered by Shenzhou-13 crew members Zhai Zhigang, Wang Yaping and Ye Guangfu to students on Earth.

Students watch a livestreamed lecture given by Chinese astronauts from China's space station Tiangong, at Beijing No. 18 Middle School, Beijing, capital of China, March 23, 2022. (Photo/VCG)

A student conducts an experiment while watching a livestreamed lecture given by Chinese astronauts from China's space station Tiangong at Beijing No. 18 Middle School, Beijing, capital of China, March 23, 2022. (Photo/VCG)

Students attend a livestreamed lecture given by Chinese astronauts from China's space station Tiangong, at Xinjianlu Elementary School, Taiyuan, Shanxi Province, March 23, 2022. (Photo: China News Service/Zhang Yun)

Students attend a livestreamed lecture given by Chinese astronauts from China's space station Tiangong, at Xinjianlu Elementary School, Taiyuan, Shanxi Province, March 23, 2022. (Photo: China News Service/Zhang Yun)

Students attend a livestreamed lecture given by Chinese astronauts from China's space station Tiangong in southwest China's Guizhou Province, March 23, 2022. (Photo/VCG)

Students watch a livestreamed lecture given by Chinese astronauts from China's space station Tiangong, at Siyuan Experimental School in Zhangye, northwest China's Gansu Province, March 23, 2022. (Photo/VCG)