Sunday marks the seventh Space Day in China. On this special occasion, more than 200 activities were organized, including aerospace open days, science lectures, knowledge competitions, and seminars. Aerospace exhibition halls and aerospace facilities opened to the general public and students of primary and secondary schools. A group of academicians and experts gave popular science lectures to young people. A number of aerospace science TV programs or online science lectures were broadcast.

A teacher explains aerospace knowledge to primary school students through models in Qingzhou Shandong Province, on Sunday. (Photos: People's Daily)

Middle school students participate in training by their teacher in Wenling, Zhejiang Province, on Sunday.

Yue Xiu, a teacher, explains aerospace knowledge to students in the aerospace science museum in Zaozhuang, Shandong Province, on Sunday.

Children use toy blocks to build Long March rockets and launch towers in a kindergarten in Huzhou, Zhejiang Province, on Friday.

A popular science caravan is sent to a school in Jiulongshan township to carry out popular science activities in Xinyu, Jiangxi Province, on Thursday.

Students visit the Youth Aerospace Science and Technology Museum in Ganzhou, Jiangxi Province, on April 16.

(Compiled by Dong Feng)