首次在轨开展寿命评估 舱外航天服是航天员在太空出舱活动中的核心装备，保障着航天员的生命安全和高效作业。中国空间站 舱外航天服是第二代"飞天"舱外航天服，按照设计标准，使用寿命为"在轨贮存3年，其间出舱使用次数 不小于15次"。 与陈冬一同创造"纪录"的，还有他身上穿着的舱外航天服B——它已累计保障20次出舱任务，成为中国 空间站首套实现"4年20次"延寿目标的舱外航天服。 2021年7月4日，在神舟十二号任务中，航天员刘伯明、汤洪波首次身着"飞天"舱外航天服A和B出舱， 并顺利完成出舱任务。随着时间的推移，至2024年初，在轨飞行的舱外航天服已经接近"3年15次"的寿 命设计指标极限。 航天服还能不能继续用？为了准确评估舱外服的剩余寿命，科研团队制定了科学合理的寿命评估、健康 监测方案和在轨检测方法。通过深入挖掘在轨和地面试验数据，科研团队开展了大量材料级和产品级的 验证试验，实现了舱外航天服在轨健康与延寿的动态精准评估。经评估，舱外服B状态稳定良好，从而 成为中国首次在轨开展寿命评估并延寿使用的飞行产品。 日前，神舟二十号乘组圆满完成第三次出舱活动。航天员陈冬、王杰完成了空间站空间碎片防护装置及 舱外辅助设 ...

Core Points - The Shenzhou-20 crew successfully completed their third extravehicular activity, with astronaut Chen Dong setting a record for the most extravehicular activities by a Chinese astronaut, totaling six [2] - The extravehicular suit B worn by Chen Dong has supported 20 extravehicular missions, achieving the goal of "4 years and 20 times" lifespan extension, marking a significant milestone for China's space station [2][4] Summary by Sections Extravehicular Suit Performance - The second-generation "Feitian" extravehicular suit is designed for a lifespan of "3 years with at least 15 extravehicular activities" [3] - As of early 2024, the suit has approached the limit of "3 years and 15 times" usage, prompting a need for a lifespan assessment [3] - A scientific evaluation and health monitoring plan was developed to assess the remaining lifespan of the suit, which has been confirmed to be in good condition [3] Technological Advancements - The "Feitian" extravehicular suit represents advanced technology and is crucial for ensuring astronaut safety and operational efficiency during extravehicular activities [5] - The suit features a multi-layer design for protection against vacuum, radiation, and extreme temperatures, with various layers serving specific functions [5] - The suit's flexibility is enhanced by a bionic structure and integrated helmet and torso design, allowing for better movement [5][6] Future Developments - Two new second-generation "Feitian" extravehicular suits (D and E) have been delivered to the space station, with an improved operational lifespan of "4 years and 20 times" [4] - The development of the lunar suit is progressing well, with plans for a manned moon landing by 2030, leveraging technologies from the "Feitian" suit [7] - The design philosophy for future suits includes modularity, lightweight construction, and multi-purpose integration to meet diverse mission requirements [7][8]

Core Viewpoint - SpaceX has canceled the tenth test flight of its "Starship" super heavy rocket due to ground system issues, raising concerns about the future of the program after multiple failures in 2023 [1][4]. Group 1: Test Flight Details - The goal of the canceled tenth flight was for the first stage "Super Heavy" booster to detach and splash down in the Gulf of Mexico, while the second stage "Starship" was to enter space, reignite its engines, and deploy eight simulated satellites [3]. - The next launch window for the "Starship" is set to open on August 25 at 6:30 PM Central Time [3]. Group 2: Technical and Operational Challenges - The "Starship" is the largest rocket ever built, standing at 123 meters, and is designed to be fully reusable for missions, including potential manned Mars missions starting in 2029 [4]. - Since its first flight in April 2023, "Starship" has had nine test flights, with only four deemed successful, and all three test flights of the "Starship" V2 version this year have failed [4]. Group 3: Expert Opinions - Analysts express skepticism about the reliability of "Starship," noting that it has experienced more failures than successes, which puts significant pressure on upcoming test flights [5]. - Concerns have been raised about the design of "Starship," with some experts suggesting that its lightweight structure may lead to structural failures during heavy payload tests [5].

Core Points - The Shenzhou 20 astronaut crew is scheduled to conduct their third extravehicular activity soon, following the successful completion of their second activity on June 26 this year [1] - The crew has been engaged in various tasks including monitoring the station environment, equipment maintenance, and preparation for extravehicular activities, while also advancing experiments in space life sciences, microgravity physics, and new technologies [1] - The space station's operational stability is confirmed, and the Shenzhou 20 crew is reported to be in good physical and mental condition, fully prepared for the upcoming extravehicular activity [1]

Core Viewpoint - The Shenzhou-20 astronaut crew is scheduled to conduct their third extravehicular activity (EVA) soon, following the successful completion of their second EVA on June 26, 2025 [1] Group 1: Mission Progress - Since the last EVA, the Shenzhou-20 crew has completed various tasks including sending off Tianzhou-8 and welcoming Tianzhou-9 [1] - The crew has also conducted station environment monitoring, equipment inspection and maintenance, inventory management, and preparations for the upcoming EVA [1] Group 2: Research and Experiments - The crew is advancing in their experimental tasks in fields such as space life sciences, human research, microgravity fundamental physics, and new technologies and applications in space [1] Group 3: Current Status - The space station assembly is operating stably, and the Shenzhou-20 crew is in good physical and mental condition, fully prepared for the EVA [1]

Group 1: Achievements of the 14th Five-Year Plan - China's economic strength has significantly increased, with GDP expected to reach approximately 140 trillion yuan by 2025, representing a growth equivalent to recreating the economies of Guangdong, Jiangsu, and Shandong combined [2] - Research and development (R&D) investment has grown nearly 50% compared to the end of the 13th Five-Year Plan, reaching 1.2 trillion yuan, with R&D intensity approaching OECD averages [3] - The renewable energy capacity has more than doubled, reaching 2.09 billion kilowatts by May 2025, with one-third of electricity generated from green sources [4] - Employment has increased with over 12 million new urban jobs created annually, and the coverage of basic medical and pension insurance remains above 95% [5] - Significant progress in state-owned enterprise reform and the establishment of a unified national market, with the number of negative lists for market access reduced from 151 to 106 [7] Group 2: Expectations for the 15th Five-Year Plan - The focus will be on advancing technology in areas such as artificial intelligence and quantum information, with a collaborative mechanism for transforming research into economic benefits [9] - A shift towards a green industrial revolution is anticipated, with non-fossil energy expected to account for about 25% of primary energy consumption [10] - Digital transformation will progress from consumer internet to industrial internet, with comprehensive coverage of industrial categories [11] - Policies will be implemented to address aging population challenges, including enhanced support for families and the development of a silver economy [12] - Reforms aimed at achieving common prosperity will be introduced, including adjustments to tax systems and minimum wage standards [13] - Efforts to enhance openness and connectivity in the dual circulation economy will be prioritized, with a reduction in foreign investment negative lists [14]

Core Points - The SpaceX "Dragon" spacecraft launched on August 1, carrying four astronauts from the US, Japan, and Russia to the International Space Station (ISS) [2] - This mission, designated "Crew-11," marks the 11th crewed flight of the Dragon spacecraft to the ISS [2] - The astronauts will conduct various scientific experiments during their mission, including lunar landing simulations and studies on the effects of microgravity [2] Launch Details - The "Dragon" spacecraft was launched at 11:43 AM EDT from Kennedy Space Center in Florida [2] - The spacecraft separated from the Falcon 9 rocket and continued its journey to the ISS, with a planned docking time of 3:00 AM EDT on August 2 [2] Astronauts Involved - The crew includes US astronauts Zena Cardman and Mike Fincke, Japanese astronaut Koichi Wakata, and Russian astronaut Oleg Platonov [2] Scientific Research Focus - The astronauts will explore plant cell division, the impact of microgravity on bacteriophages, and methods to increase human stem cell production [2] - Additional experiments will focus on generating nutrients on demand and testing vision protection strategies [2]

Core Viewpoint - The article reports on the successful launch of SpaceX's "Dragon" spacecraft carrying four astronauts to the International Space Station (ISS) as part of the Crew-11 mission, highlighting the ongoing collaboration in space exploration among the United States, Japan, and Russia [1] Group 1: Mission Details - The "Dragon" spacecraft was launched from Kennedy Space Center in Florida on August 1, 2023, at 11:43 AM EDT (11:43 PM Beijing time) [1] - The spacecraft is scheduled to dock with the ISS around 3:00 AM EDT on August 2, 2023 (3:00 PM Beijing time) [1] - This mission marks the 11th crew rotation to the ISS using the "Dragon" spacecraft [1] Group 2: Astronauts Involved - The crew consists of four astronauts: Zena Cardman and Mike Fincke from the United States, Koichi Wakata from Japan, and Oleg Platonov from Russia [1] Group 3: Research Objectives - During the mission, the astronauts will conduct various scientific experiments, including simulating lunar landings and testing vision protection strategies [1] - Additional research will focus on plant cell division, the effects of microgravity on bacteriophages, and increasing human stem cell production [1] - The mission aims to generate nutrients on demand as part of ongoing human spaceflight research [1]

Group 1 - The core point of the article is the successful docking of the Tianzhou-9 cargo spacecraft with the Tianhe core module of the Chinese space station on July 15, 2025, at 8:52 AM Beijing time [1] - Following the docking, the Shenzhou-20 astronaut crew will enter the Tianzhou-9 cargo spacecraft to carry out cargo transfer and related tasks as planned [2]

Core Points - The Tianzhou-9 cargo spacecraft was successfully launched by the Long March 7 Yao-10 rocket, marking a significant achievement in China's space logistics [1] - The cargo weight of Tianzhou-9 reached approximately 6.5 tons, setting a new record for cargo transport to the space station, which will support long-term operations and astronaut residency [1] Group 1 - The Tianzhou-9 mission included two sets of upgraded extravehicular spacesuits, with an extended lifespan from 3 years and 15 missions to 4 years and 20 missions [3] - Three new cell biology experiment samples were sent aboard, focusing on bone marrow mesenchymal stem cells, heart failure cells, and humanized vascular organ models for aging research [5] - A core muscle exercise device was included in the mission, designed to prevent muscle atrophy during long-duration flights and improve astronauts' re-adaptation to gravity [6] Group 2 - The total amount of space food sent with Tianzhou-9 exceeded 1.5 tons, with nearly 30 new dishes added, increasing the total variety to over 190 and extending the food supply cycle from 7 days to 10 days [8]