神舟二十一号载人飞船返回舱成功着陆

Core Viewpoint - The Shenzhou 20 manned spacecraft successfully returned to Earth, marking significant achievements in China's space exploration efforts, including record-breaking stay durations and mission activities by astronauts [1]. Group 1: Mission Achievements - The Shenzhou 20 crew, consisting of astronauts Chen Dong, Chen Zhongrui, and Wang Jie, completed a record 204 days in orbit, setting a new record for the longest single crew stay in space for Chinese astronauts [1]. - During their mission, the crew conducted four extravehicular activities and multiple cargo transfer tasks, contributing to extensive space scientific experiments in collaboration with ground researchers [1]. Group 2: Astronaut Records - Astronaut Chen Dong became the first Chinese astronaut to exceed 400 days in total spaceflight duration and holds the record for the most extravehicular activities performed by a Chinese astronaut [1]. Group 3: Safe Return - The Shenzhou 20 crew safely exited the spacecraft at 17:21 and subsequently arrived in Beijing, concluding their successful space mission [1].