神二十返回舱受损细节公布

Core Viewpoint - The increasing number of space debris poses a significant threat to the safety of spacecraft, satellites, and astronauts, leading to the emergency suspension of the Shenzhou 20 mission due to a discovered crack in the spacecraft's window [1][2]. Group 1: Incident Details - On November 5, 2025, the Shenzhou 20 mission was urgently paused after astronauts reported an abnormal phenomenon at the edge of the return capsule's window during a routine inspection [2]. - The initial assessment by the chief designer of the crewed spacecraft system indicated that the crack was likely caused by space debris smaller than 1 millimeter, but traveling at high speed, resulting in a significant crack size of several millimeters [1][3]. - Experts from over ten domestic glass-related industries were organized to evaluate the damage after the astronauts captured images of the abnormality from various angles and lighting conditions [2]. Group 2: Decision-Making Process - Following the confirmation of the crack, the mission command made the decision to delay the Shenzhou 20 return mission within 12 hours [4].