National aerospace scientists give lectures, meet students in Hong Kong

Source: Xinhua| 2021-06-23 23:08:54|Editor: huaxia

Hu Hao (R), the chief designer of the third stage of the national lunar exploration program, presents a national flag, which is the same as the one carried by the Chang'e-5 probe to the moon, to the University of Hong Kong as a gift, in Hong Kong, south China, June 23, 2021. (Xinhua/Li Gang)

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