Core Viewpoint - The Shenzhou-20 spacecraft successfully returned to Earth, marking the completion of its mission and the retirement of the space suit B, which has supported 20 extravehicular activities [1][2]. Group 1: Mission Success - The Shenzhou-20 spacecraft's return capsule landed successfully at the Dongfeng landing site, with overall normal conditions confirmed for the capsule and its contents [1][2]. - The Shenzhou-20 crew completed their third extravehicular activity on August 15, 2025, with space suit B achieving the milestone of supporting 20 extravehicular activities over four years [1]. Group 2: Space Suit B Significance - Space suit B, known as "Space Blue," has been worn by multiple astronauts and is seen as a testament to China's rapid advancements in space exploration [4]. - The suit is crucial for astronauts to perform tasks outside the space station, such as equipment installation and external component replacement [4]. Group 3: Future Developments - Currently, there are three types of extravehicular suits (A, B, C) in the Chinese space station, with new suits D and E expected to enhance performance and lifespan from three years and 15 missions to four years and 20 missions [6].