The screen at the Beijing Aerospace Control Center shows the two Chinese astronauts Jing Haipeng (L) and Chen Dong entering the space lab Tiangong-2, on Oct 19, 2016. After the launch of Shenzhou-11 on Oct 17, the spacecraft docked two days later with China's first space lab, Tiangong-2, where the two astronauts lived for 30 days. The two astronauts who completed China's longest-ever manned space mission returned to Earth safely on Nov 18. China achieved major breakthroughs in scientific and technological development in 2016. [Photo/Xinhua]