我国首套退役舱外服随神二十返回

Core Points - The Chinese space station's extravehicular suit B has successfully completed 20 extravehicular activities during 8 manned missions, marking it as the first retired extravehicular suit of China's space station [1] - The suit, which weighs over 100 kilograms, was launched on May 29, 2021, and was designed for a lifespan of 3 years with a minimum of 15 extravehicular activities [1] - The suit exceeded its design lifespan and achieved a remarkable "4 years and 20 times" extension goal, setting a world record for a single extravehicular activity lasting 9 hours [1] Summary by Sections Extravehicular Suit B - Extravehicular suit B is the first retired suit of China's space station, having completed 20 extravehicular activities [1] - It was launched aboard the Tianzhou-2 cargo spacecraft and is part of China's second-generation "Feitian" extravehicular suits [1] - The suit's design included a storage period of 3 years and a minimum of 15 extravehicular activities, which it surpassed [1] Achievements - The suit has supported 20 extravehicular activities across 8 manned missions, achieving a world record for the longest single extravehicular activity at 9 hours [1] - It has successfully met the extended usage goal of "4 years and 20 times" [1] Farewell from Astronauts - The Shenzhou-21 crew recorded a farewell video for the suit, highlighting its significance as a protective gear in space [2] - Astronauts expressed their gratitude and respect for the suit's performance during missions [2]