Core Viewpoint - The Shenzhou 21 mission successfully completed several key tasks in a spacewalk, demonstrating effective collaboration between astronauts and ground support teams [2]. Group 1 - The Shenzhou 21 crew, consisting of astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, conducted an 8-hour extravehicular activity [2]. - Key tasks included inspecting and photographing the return capsule's porthole, installing a space debris protection device on the space station, and replacing the multi-layer cover of the temperature control adapter [2].