神舟二十号有望刷新中国航天员乘组在轨驻留最长纪录

Core Viewpoint - The Shenzhou-20 mission is expected to set a new record for the longest duration of a Chinese astronaut crew in space, currently at 188 days, with successful preparations for crew rotation and return [1][3]. Group 1: Mission Achievements - The Shenzhou-20 crew has completed 6 spacewalks, making the commander Chen Dong the first Chinese astronaut to exceed 400 days in space [1]. - During the mission, the crew conducted 4 spacewalks and 7 payload operations, successfully installing a space debris protection device and conducting inspections of external equipment [1]. - Significant advancements in space science and applications were achieved, including high-quality protein crystals for potential cancer treatment, a new record for heating tungsten alloy to 3100 degrees Celsius, and the discovery of charged colloids forming long-lived metastable structures in microgravity [2]. Group 2: Current Status and Future Plans - The Shenzhou-20 crew is currently preparing for crew rotation and return to Earth [3].