A Long March-4C rocket carrying the third group of China's Yaogan-31 remote sensing satellites blasts off from the Jiuquan Satellite Launch Center in northwest China, Feb. 24, 2021.(Photo: Xinhua)
A Long March-4C rocket carrying the third group of China's Yaogan-31 remote sensing satellites blasts off from the Jiuquan Satellite Launch Center in northwest China, Feb. 24, 2021.(Photo: Xinhua)
A Long March-4C rocket carrying the third group of China's Yaogan-31 remote sensing satellites blasts off from the Jiuquan Satellite Launch Center in northwest China, Feb. 24, 2021.(Photo: Xinhua)
A Long March-4C rocket carrying the third group of China's Yaogan-31 remote sensing satellites blasts off from the Jiuquan Satellite Launch Center in northwest China, Feb. 24, 2021.(Photo: Xinhua)