神舟二十一号航天员张陆、武飞、张洪章在轨工作已超70天。上周恰逢元旦假期，他们的"太空日程 表"依旧忙碌而充实。他们在轨开展了遥操作交会对接在轨训练、医疗救护在轨训练和紧急撤离训练等 多项在轨训练，有序推进了多领域科学实验。 多项在轨训练按计划有序开展 上周，遥操作交会对接在轨训练按计划开展，航天员利用平移手柄和姿态控制手柄进行速度控制和姿态 控制等操作技能训练。乘组完成了医疗救护在轨训练，在熟悉微重力环境下的救护操作方式、施力特性 的同时，进一步熟悉设备位置、复习使用方法、巩固操作流程和技能。此外，乘组还完成了模拟空间站 失火工况下的紧急撤离训练。 空间科学实（试）验最新进展 在航天医学实验领域，乘组利用脑电设备开展相关实验。航天员佩戴着VR眼镜，完成眼脑协同等多项 实验，相关研究用于探讨失重条件下航天员脑控信号特征模式和变化趋势。同时，开展了微重力直觉物 理和空间合作编码及调控等相关研究。 在空间材料科学领域，锂电子电池电化学光学原位研究实验进展顺利，相关成果有望为后续太空任务中 锂离子电池研制和高可靠应用提供重要理论支撑。 根据实验安排，乘组完成了燃烧科学实验柜内燃烧器更换、流体物理实验柜内实验模块拆装 ...

Core Points - The article reports two significant solar flares occurring on November 5 and 6, with maximum intensities of M7.4 and M8.6, accompanied by coronal mass ejections (CME) [1][5] - The solar activity is expected to lead to strong geomagnetic activity over the next three days, with potential auroras visible in northern regions of China, including Heilongjiang, Xinjiang, and Inner Mongolia [5][6] Group 1: Solar Activity - The solar flares are characterized by high-energy releases and are associated with CME, which can impact Earth's magnetic field [5][6] - The magnetic field strength of the sun is significantly higher than that of Earth, which contributes to the geomagnetic effects observed during solar events [6][11] Group 2: Geomagnetic Effects - Geomagnetic storms can affect high-tech equipment, particularly satellites and navigation systems, due to atmospheric drag and ionospheric instability [11] - Wildlife that relies on magnetic fields for navigation, such as homing pigeons, may experience difficulties during geomagnetic storms [11] Group 3: Solar Activity Monitoring - The article highlights the importance of monitoring solar activity, particularly the sunspot group 14274, which has a complex magnetic structure and potential for further eruptions [13][14] - The presence of another sunspot group, 14275, is also noted, which could pose additional challenges if it becomes active [14]

Core Points - The international standard project ISO/NP14620-5 for manned spacecraft safety requirements has been officially registered by the International Organization for Standardization (ISO) [1] - This is the first successful international standard initiative in China's manned spaceflight sector, marking a significant breakthrough in international rule-making [1] - The standard aims to enhance China's international influence and discourse power in manned spaceflight safety [1] Group 1 - The standard includes safety management requirements, technical requirements, design and verification requirements, and in-orbit mission safety requirements for manned spacecraft [2] - It provides a unified technical guideline and paradigm for safety work applicable to manned spacecraft and related products, ensuring safety across all phases of manned space missions [2] - The project team will proceed with the planned compilation work to ensure the standard is published and implemented smoothly [2]

Core Points - The international standard project ISO/NP14620-5 for manned spacecraft safety requirements has been officially registered by the International Organization for Standardization (ISO), marking China's first successful establishment of an international standard in the manned spaceflight sector [1] - This standard aims to enhance China's international influence and voice in manned spaceflight safety, providing a "Chinese solution" for promoting safety in manned space missions [1] - The standard is based on over 30 years of safety work experience in China's manned space program and incorporates advanced safety technologies and methods from foreign aerospace sectors [1] Summary by Sections - **Standard Content**: The standard includes safety management requirements, technical requirements, design and verification requirements, and safety requirements for in-orbit flight missions, ensuring safety across all stages of manned space missions, including development, launch, operation, and landing [2] - **Applicability**: It is applicable to manned spacecraft, cargo spacecraft, space stations, and related payload products, and also provides guidance for safety design in lunar exploration projects [2] - **Future Plans**: The project team will proceed with the planned stages of standard preparation to ensure its successful release and implementation [2]

Core Points - The Shenzhou-20 crew successfully completed their third extravehicular activity (EVA) on August 15, 2023, lasting approximately 6.5 hours [1] - Astronaut Chen Dong became the Chinese astronaut with the most EVAs, marking his sixth outing [3] - The main tasks included inspecting key equipment and facilities outside the space station, which will aid in future model development and thermal control technology [5][6] Summary by Sections - **EVA Completion** - The Shenzhou-20 crew, consisting of Chen Dong, Chen Zhongrui, and Wang Jie, completed their third EVA successfully [1] - The EVA involved critical tasks such as the installation of space debris protection devices and external facility inspections [6] - **Astronaut Activities** - Chen Dong opened the hatch and exited the module, becoming the astronaut with the highest number of EVAs in China [3] - Wang Jie conducted his first EVA, becoming the second flight engineer to perform an extravehicular activity [5] - **Technical Objectives** - The EVA focused on identifying thermal characteristics of key external equipment to analyze their operational status [5] - The data collected will support future developments in thermal control technology and spacecraft design [5]

Core Viewpoint - The meeting highlighted China's commitment to developing manned spaceflight, with plans to achieve manned lunar landing by 2030, showcasing the collective efforts and advancements in space technology over the past 30 years [1][4]. Group 1: Achievements in Manned Spaceflight - China has made significant achievements in manned spaceflight, establishing a national-level "space laboratory" and creating internationally leading scientific experiment cabinets [4][5]. - The development of these technologies is a result of self-reliance and innovation, with a focus on optimizing systems and avoiding past mistakes [5][6]. Group 2: Spirit and Culture of Space Exploration - The spirit of perseverance and dedication among Chinese astronauts is emphasized, reflecting a legacy of hard work and commitment to overcoming challenges in space exploration [5][6]. - The culture of rigorous training and preparation is crucial for astronauts, ensuring they are well-equipped to handle the demands of space missions [6][7]. Group 3: International Collaboration and Breakthroughs - The use of scientific experiment cabinets has led to breakthroughs in various fields, including genetics and materials science, demonstrating China's capability to achieve results on par with international standards [4][5].