Chinese Vice Premier Liu He, also member of the Political Bureau of the Communist Party of China (CPC) Central Committee, and Zhang Youxia, member of the Political Bureau of the CPC Central Committee and vice chairman of the Central Military Commission, meet with staff members of the Beijing Aerospace Control Center after the complete success of the Chang'e-4 mission, in Beijing, capital of China, on Jan. 11, 2019. Liu and Zhang arrived at the Beijing Aerospace Control Center on Friday, watching the lander and rover taking photos of each other. (Xinhua/Pang Xinglei)