China on Tuesday launched its most sophisticated observation satellite, Gaofen-4, as part of the country’s high-definition (HD) earth observation project. Gaofen-4 was launched from the Xichang Satellite Launch Center in the southwest China province of Sichuan at 00:04 aboard a Long March-3B carrier rocket. It was the 222th flight of the Long March rocket series, according to the State Administration of Science, Technology and Industry for National Defense (SASTIND). “The rockets has high reliability, high […]