据参考消息援引路透社12月19日报道，美国太空探索技术公司（SpaceX）旗下"星链"计 划表示，其一颗卫星17日在太空发生异常，产生了"少量"碎片，并在418公里的高度与地 面失去通信联系，这是这家卫星互联网巨头在轨道上发生的罕见动力事故。 "星链"：卫星正在翻滚 预计几周内重返地球大气层并烧毁 据"星链"官方账号披露， 本周三，第35956号星链卫星发生异常事故，在距离地面418公 里处失联 。异常导致卫星的推进剂储罐泄漏，高度迅速下降4公里，并释放出少量碎片。 "星链"在社交平台X上发文称："这颗卫星大致保持完整，目前正在翻滚，预计将在几周内 重新进入地球大气层并完全烧毁。" 文章还称，这颗卫星是其宽带互联网网络在太空中的近1万颗卫星之一。该卫星的高度迅速 坠落，显示其可能发生了某种爆炸。 在美国加利福尼亚州朗代尔拍摄的照片显示，搭载着" 星链 "卫星的"猎鹰9"火箭从范登堡太空军基地 发射升空。图片来源：参考消息（法新社资料图片） 该公司正与美国太空部队和美国国家航空航天局合作监测碎片，SpaceX在声明中没有透露 碎片的数量。 美国近地轨道实验室公司表示，他们发现了"数十个"可能是事故残骸的碎片，随 ...

据参考消息援引路透社12月19日报道，美国太空探索技术公司（SpaceX）旗下"星链"计划表示，其一颗卫星 17日在太空发生异常，产生了"少量"碎片，并在418公里的高度与地面失去通信联系，这是这家卫星互联网巨 头在轨道上发生的罕见动力事故。 "星链"：卫星正在翻滚 预计几周内重返地球大气层并烧毁 据"星链"官方账号披露，本周三，第35956号星链卫星发生异常事故，在距离地面418公里处失联。异常导致 卫星的推进剂储罐泄漏，高度迅速下降4公里，并释放出少量碎片。 "星链"在社交平台X上发文称："这颗卫星大致保持完整，目前正在翻滚，预计将在几周内重新进入地球大气 层并完全烧毁。" 文章还称，这颗卫星是其宽带互联网网络在太空中的近1万颗卫星之一。该卫星的高度迅速坠落，显示其可能 发生了某种爆炸。 该公司正与美国太空部队和美国国家航空航天局合作监测碎片，SpaceX在声明中没有透露碎片的数量。 美国近地轨道实验室公司表示，他们发现了"数十个"可能是事故残骸的碎片，随着对事件分析的继续，可能 还会发现更多碎片。 近地轨道实验室公司还说，高度的迅速下降可能表明事故是由内部问题引起的，而不是与太空中的另一个物 体相撞。 ...

每经编辑｜段炼 据参考消息援引路透社12月19日报道，美国太空探索技术公司（SpaceX）旗下"星链"计划表示，其一颗卫星17日在太空发生异常，产生了"少量"碎片，并 在418公里的高度与地面失去通信联系，这是这家卫星互联网巨头在轨道上发生的罕见动力事故。 "星链"：卫星正在翻滚 预计几周内重返地球大气层并烧毁 据"星链"官方账号披露，本周三，第35956号星链卫星发生异常事故，在距离地面418公里处失联。异常导致卫星的推进剂储罐泄漏，高度迅速下降4公 里，并释放出少量碎片。 文章还称，这颗卫星是其宽带互联网网络在太空中的近1万颗卫星之一。该卫星的高度迅速坠落，显示其可能发生了某种爆炸。 在美国加利福尼亚州朗代尔拍摄的照片显示，搭载着"星链"卫星的"猎鹰9"火箭从范登堡太空军基地发射升空。图片来源：参考消息（法新社资料图片） "星链"在社交平台X上发文称："这颗卫星大致保持完整，目前正在翻滚，预计将在几周内重新进入地球大气层并完全烧毁。" 该公司正与美国太空部队和美国国家航空航天局合作监测碎片，SpaceX在声明中没有透露碎片的数量。 美国近地轨道实验室公司表示，他们发现了"数十个"可能是事故残骸的碎片，随着 ...

Core Points - NASA astronaut Zena Cardman shared a video showcasing the stunning auroras viewed from the International Space Station [1] - The occurrence of auroras is linked to solar activity and its interaction with Earth's magnetic field [1] Group 1 - The auroras frequently appear at the International Space Station, with last week's display being particularly spectacular [1] - Solar flares and coronal mass ejections release high-speed charged particle streams that travel through space to Earth [1] - These particles interact with Earth's magnetic field, leading to geomagnetic activity that results in the formation of auroras [1] Group 2 - High-energy particles enter the upper atmosphere at the poles, colliding with atmospheric gas atoms and releasing energy [1] - This energy release ultimately creates the beautiful visual phenomenon known as auroras [1]

Core Points - The article discusses the recent aurora phenomenon observed in various northern regions of China, attributed to solar activity and geomagnetic storms [2][4][8] - The auroras displayed vibrant colors and varied shapes, captivating sky photography enthusiasts [6][10] - This event marks a significant opportunity for aurora observation, especially given the recent decline in aurora frequency this year compared to last year [10][12] Summary by Sections - **Aurora Observation**: Auroras were prominently visible in regions such as Heilongjiang, Jilin, Liaoning, Inner Mongolia, Xinjiang, and Beijing, showcasing stunning light displays [8][10] - **Solar Activity Impact**: The occurrence of geomagnetic storms, influenced by multiple coronal mass ejections, led to the auroras, with predictions of varying storm intensities [4][12] - **Comparison to Previous Events**: The scale of this aurora event is comparable to a notable occurrence in May 2022, which also reached mid-latitude areas like Beijing [12][13] - **Future Predictions**: The current solar cycle is expected to peak around 2025, suggesting continued opportunities for aurora sightings in northern China [13]

Core Points - The article discusses the occurrence of auroras in Inner Mongolia and Beijing, with photography enthusiasts capturing the phenomenon in Beijing's Huairou district [1][3] - The Beijing Planetarium team is conducting live observations of the auroras in Inner Mongolia's Hulunbuir region, where a vibrant red-green aurora was seen around 20:17 [1][3] Group 1 - The National Space Weather Monitoring and Warning Center reported that a geomagnetic storm began at 8:00 AM on November 12, triggered by a solar eruption on November 10, which sent coronal mass ejections to Earth [3] - The geomagnetic storm caused high-energy particles from the sun to interact with the Earth's atmosphere, leading to the formation of auroras [3][4] - Residents north of the 40th parallel are encouraged to look towards the northern sky at night for potential aurora sightings, with those at higher altitudes around the 35th parallel also having a chance [3] Group 2 - The director of the Science Education Department at the Beijing Planetarium explained that auroras are typically visible in high-latitude regions, especially during periods of intense solar activity [3] - The years 2024 and 2025 are expected to be peak years in the solar activity cycle, increasing the likelihood of auroras being visible in mid-latitude areas [3] - Historically, auroras have rarely been observed in China's 40 to 50 degrees north latitude range, but there have been multiple sightings in recent years, including one in Beijing last year [3]

Group 1 - The National Space Weather Monitoring and Warning Center of China Meteorological Administration predicts moderate geomagnetic activity in the next two days [1][3] - Northern regions of China, such as Mohe in Heilongjiang, Xinjiang, and Inner Mongolia, may witness auroras tonight to early tomorrow morning, primarily featuring weak red auroras with a small chance of red-green composite auroras [1] - Public interested in viewing the auroras should look for clear skies and low light pollution areas [1] Group 2 - The occurrence of auroras is linked to solar activities such as solar flares and coronal mass ejections, which release high-speed charged particle streams [2] - These particles interact with the Earth's magnetic field, leading to geomagnetic activity and resulting in the beautiful display of auroras when they collide with atmospheric gas atoms [2]

Core Points - The article discusses the expected moderate geomagnetic activity in China over the next two days, which may lead to the appearance of auroras in northern regions such as Heilongjiang, Xinjiang, and Inner Mongolia [2][4] - The auroras are anticipated to primarily exhibit red weak auroras, with a small chance of red-green composite auroras [2] - The phenomenon is attributed to the interaction between solar activities, such as solar flares and coronal mass ejections, and the Earth's magnetic field, resulting in high-energy particles colliding with atmospheric gases to create auroras [3]

Core Points - The National Space Weather Monitoring and Warning Center of China predicts moderate geomagnetic activity in the next two days, which may lead to auroras in northern regions such as Mohe in Heilongjiang, Xinjiang, and Inner Mongolia [1][3] - The auroras are expected to primarily feature weak red auroras, with a small chance of red-green composite auroras [1][3] - The public is encouraged to observe the night sky in areas with clear weather and low light pollution to enjoy the auroras [1][3] Summary by Sections - **Solar Activity and Auroras** - Auroras are a result of the interaction between solar activity and the Earth's magnetic field, triggered by solar flares and coronal mass ejections that release high-speed charged particles [3] - These particles travel through interstellar space and interact with the Earth's magnetic field, leading to geomagnetic activity and the formation of auroras when they collide with atmospheric gas atoms [3] - **Upcoming Geomagnetic Activity** - Moderate geomagnetic activity is expected in the coming days, providing an opportunity for aurora enthusiasts to witness this natural phenomenon [3]

Core Viewpoint - Recent solar activity has increased significantly, with multiple solar flares occurring in early November, which may impact space weather and technology on Earth [1][2] Group 1: Solar Activity - The sun has recently experienced several significant flares, including X1.8, X1.1, M7.4, M8.6, and X1.7 levels [1] - Solar flares and coronal mass ejections are part of solar activity, with flares likened to volcanic eruptions on the sun's surface, ejecting massive amounts of material at high speeds [1] Group 2: Space Weather Impact - Space weather refers to changes in the space environment caused by solar activity, with geomagnetic storms being one of the effects [1][2] - While humans on the ground are generally safe from geomagnetic storms, these events can disrupt high-tech sectors such as aerospace, aviation, and communications [1] Group 3: Monitoring and Forecasting - The National Space Weather Monitoring and Early Warning Center has issued warnings for potential geomagnetic activity, indicating possible small to moderate geomagnetic storms [2] - China has made advancements in space weather monitoring capabilities, including the completion of the Meridian Project Phase II and the launch of the "Fengyun Space" system [2] - The upcoming "Xihe II" solar probe is expected to enhance predictive capabilities for solar activity, providing timely warnings and data support for space weather forecasting [2]