Taikonauts Ye Guangfu and Zhai Zhigang completed their extravehicular activities (EVAs) and returned to Tianhe, the core module of China's space station, on Monday. The two Chinese astronauts at the country's first space station ventured out for the second spacewalk on Sunday, while their teammate Wang Yaping remained inside to control the robotic arm to support follow-up operations, including lifting the space station's extravehicular panoramic camera and verifying autonomous object transfer, according to the China Manned Space Agency.