Core Viewpoint - The Shenzhou-20 astronaut crew continues their productive work in orbit, highlighting new developments within the Chinese space station [1] Group 1 - The Shenzhou-20 mission is characterized by the busy and fulfilling work of the three astronauts [1]

Group 1 - The core event involves the successful in-orbit handover between the Shenzhou 20 and Shenzhou 19 crews, marking the sixth relay of the "Shenzhou family" in space [1] - The handover was symbolized by the transfer of the space station key, which emphasizes the continuity of the Chinese space station mission and the importance of teamwork [11] - The first in-orbit handover occurred on December 2, 2022, marking the beginning of a long-term human presence in the Chinese space station [7] Group 2 - The Shenzhou 14 commander, Chen Dong, officially handed over the space station key to the Shenzhou 15 commander, Fei Junlong, highlighting the collaborative efforts of the crews [3][5] - The in-orbit handover process has evolved, with the first two batches of astronauts being the main force during the initial stages, while the third batch joined in later handovers [9] - The space station key is metaphorically referred to as a "relay baton," representing the ongoing mission and the collective understanding of the "Shenzhou family" in space [11]