Staff members work on a rocket, Oct. 27, 2016. China Academy of Launch Vehicle Technology (CALT) was established in 1957 and is China's largest organization for the research, development and production of missiles and carrier rockets. (Photos: Xinhua)

China's first cargo spacecraft Tianzhou-1 is launched by a Long March-7 Y2 carrier rocket, April 20, 2017. China Academy of Launch Vehicle Technology (CALT) was established in 1957 and is China's largest organization for the research, development and production of missiles and carrier rockets.

Two satellites of the BeiDou Navigation Satellite System (BDS) are launched by a Long March-3B carrier rocket, Feb. 12, 2018. China Academy of Launch Vehicle Technology (CALT) was established in 1957 and is China's largest organization for the research, development and production of missiles and carrier rockets.

The "ChinaSat 6C" satellite is launched by a Long March-3B carrier rocket from the Xichang Satellite Launch Center in Xichang, southwest China's Sichuan Province, March 10, 2019. China Academy of Launch Vehicle Technology (CALT) was established in 1957 and is China's largest organization for the research, development and production of missiles and carrier rockets.