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The China Academy of Space Technology (CAST) is a Chinese space agency and subordinate of China Aerospace Science and Technology Corporation (CASC). The agency was founded on 20 February 1968, and is the main spacecraft development and production facility in China. On 24 April 1970, CAST successfully launched China's first artificial satellite Dong Fang Hong I.
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation (GPS), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning, signals intelligence and, potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later become defunct.
Beijing, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's most populous national capital city as well as China's second largest city by urban area after Shanghai. It is located in Northern China, and is governed as a municipality under the direct administration of the State Council with 16 urban, suburban, and rural districts. Beijing is mostly surrounded by Hebei Province and neighbors Tianjin to the southeast; together, the three divisions form the Jing-Jin-Ji cluster.
February 20 is the 51st day of the year in the Gregorian calendar; 314 days remain until the end of the year.