A Long March-4B rocket, carrying the Haiyang-2C (HY-2C) satellite, is launched from the Jiuquan Satellite Launch Center in northwest China, Sept. 21, 2020. The country''s third ocean dynamic environment satellite, the HY-2C, will form a network with the previous HY-2B and subsequent HY-2D to carry out high-precision maritime environment monitoring. (Photo by Wang Jiangbo/Xinhua)