China sends two satellites of BeiDou Navigation Satellite System (BDS) into space from the Xichang Satellite Launch Center in Xichang, southwest China's Sichuan Province, Sept. 23, 2019. Launched on a Long March-3B carrier rocket, the two satellites entered the orbit. They are the 47th and 48th satellites of the BDS satellite family. After in-orbit tests, the new satellites will work with those BDS satellites already in orbit to improve positioning accuracy of the system. (Photo by Zhang Wenjun/Xinhua)