Zhang Gaoli, vice premier and a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, delivers a congratulatory note from the CPC Central Committee, the State Council and the Central Military Commission at the command center of China's manned space program in Beijing, capital of China, Nov. 18, 2016. Two astronauts who completed China's longest-ever manned space mission returned to Earth safely Friday afternoon. (Xinhua/Yan Yan)