经济观察网 据大湾区之声，近日，香港大学太空研究实验室执行主任苏萌在接受媒体采访时透露，"十 五五"期间，香港将继续深度参与嫦娥七号、嫦娥八号、天问三号等国家重大航天工程（603698）。此 外，香港将参与向月球进发，在2028年前后发射"月闪"探测器，观察月球上的流星。 ...

Core Insights - The Tianwen-1 mission successfully observed the interstellar comet Atlas, marking the first time a Chinese spacecraft has observed an interstellar body, which is estimated to be between 3 billion and 11 billion years old [1][3]. Group 1: Mission Details - Tianwen-1 is China's first Mars probe, originally designed to capture images of the bright Martian surface, but it has now successfully attempted to photograph a much fainter target, Atlas, which is 10,000 to 100,000 times dimmer than Mars [3]. - The probe was approximately 30 million kilometers away from Atlas during the imaging process, making it one of the closest spacecraft to observe this interstellar object [3][7]. Group 2: Scientific Significance - Atlas follows a hyperbolic trajectory, indicating it originated from outside the solar system, unlike celestial bodies within the solar system that follow elliptical orbits [5]. - Continuous imaging of Atlas allowed the research team to gather information about its flight path through the solar system and its position relative to Mars [7][9]. - The research team deduced that Atlas likely originated near an ancient star in the center of the Milky Way galaxy, with its discovery initially made by a ground-based telescope in Chile [9][11]. Group 3: Composition and Future Research - The imaging analysis revealed that Atlas has a significant tail, potentially containing water ice and carbon dioxide, which requires further confirmation [13]. - The unique nature of Atlas means that every particle of dust and ice it carries is different from those found in the solar system, providing an opportunity to compare its composition with solar system comets to gain insights into the origins of the solar system [13]. Group 4: Future Missions - The successful observation of Atlas by Tianwen-1 lays a technical foundation for the upcoming Tianwen-2 mission, which will also focus on detecting small, faint celestial bodies [15]. - The experience gained from this mission is expected to contribute to future deep space exploration efforts [15].

Core Insights - The Tianwen-1 orbiter successfully observed the interstellar object Atlas (3I/ATLAS), marking the first time a Chinese spacecraft has observed such a celestial body [2][5] - Atlas was discovered on July 1, 2025, by a survey telescope in Chile and is the third known interstellar object to visit the solar system, potentially older than the solar system itself [2] - The observation was conducted from approximately 30 million kilometers away, making Tianwen-1 one of the closest spacecraft to the target [2] Group 1 - The successful observation of Atlas represents an important expansion task for Tianwen-1, serving as a technical trial for asteroid exploration in the upcoming Tianwen-2 mission [5] - The Tianwen-1 team began preparations for the Atlas observation in early September, facing challenges due to the object's distance, high speed (approximately 58 km/s), and small size (nucleus diameter of about 5.6 km) [5] - The brightness of Atlas was significantly dimmer than Mars, making it 10,000 to 100,000 times darker than the Martian surface, which posed high demands on the orbiter's attitude control and imaging strategy [5] Group 2 - The optical payload on Tianwen-1 was originally designed for capturing bright Martian surfaces, marking the first attempt to photograph such a distant and faint target [5] - The Tianwen-1 team conducted extensive simulations and feasibility assessments to adapt the high-resolution camera for this unique observation task [5] - Since entering Martian orbit in February 2021, Tianwen-1 has been operating stably for 4 years and 8 months [5]

Core Insights - The Tianwen-1 orbiter successfully observed the interstellar object Atlas (3I/ATLAS), marking the first time a Chinese spacecraft has observed an interstellar body [1] - Atlas was discovered on July 1, 2025, by a survey telescope in Chile and is the third known interstellar object to visit the solar system, potentially older than the solar system itself [1] - The observation was conducted from approximately 30 million kilometers away, making Tianwen-1 one of the closest detectors to the object [1] Group 1 - The observation of Atlas is a significant extension of the Tianwen-1 mission, providing technical trials for future asteroid exploration with Tianwen-2 [5] - The Tianwen-1 team began preparations for the observation in early September, facing challenges due to the object's distance, speed, and small size [5][6] - The high-resolution camera on Tianwen-1 was originally designed for capturing bright Martian surfaces, making this the first attempt to photograph such a distant and faint target [5][6] Group 2 - The observation required extensive simulations and calculations to assess feasibility, leading to the successful design of a key imaging strategy [6] - Tianwen-1 has been operational since February 2021, maintaining a stable status for 4 years and 8 months [6]

Core Viewpoint - The successful observation of the interstellar object ATLAS by the Tianwen-1 orbiter represents a significant expansion of its mission capabilities, providing valuable data for future asteroid exploration by Tianwen-2 [2][8]. Group 1: Observation Details - The Tianwen-1 orbiter utilized a high-resolution camera to observe the interstellar object ATLAS from approximately 30 million kilometers away, marking one of the closest observations of this celestial body [2][8]. - The high-resolution camera captured images that clearly displayed the comet-like features of ATLAS, which has a diameter of several thousand kilometers [4]. - A series of images taken over 30 seconds were compiled into an animation to illustrate the motion trajectory of ATLAS, aiding in further research [4]. Group 2: Scientific Significance - ATLAS, discovered on July 1, 2025, by a telescope in Chile, is the third known interstellar object to visit the solar system, traveling on a hyperbolic trajectory [9]. - The object is estimated to be between 3 billion and 11 billion years old, potentially older than the solar system itself, making it a rare sample for studying the composition and evolution of exoplanets and early stellar history [9]. - The Tianwen-1 team began preparations for observing ATLAS in early September, facing challenges due to the object's great distance, high speed (approximately 58 km/s), and small size (nucleus diameter of about 5.6 km) [9]. Group 3: Technical Challenges and Solutions - The high-resolution camera on Tianwen-1 was originally designed for capturing bright Martian surfaces, making this the first attempt to photograph such a distant and faint target, which is 10,000 to 100,000 times dimmer than Martian surfaces [13]. - The Tianwen-1 team conducted extensive simulations and feasibility assessments to adapt the camera's capabilities for this challenging observation, ultimately achieving successful imaging of ATLAS [13]. - The mission has been operational since February 2021, maintaining a stable status for over 4 years and 8 months [14].

Core Insights - The Tianwen-1 orbiter successfully observed the interstellar object Atlas, marking the first time a Chinese spacecraft has observed such a celestial body [1] - Atlas is the third known interstellar object to visit the solar system, with an estimated age of 3 to 11 billion years, potentially older than the solar system itself, making it a rare sample for studying exoplanet composition and early stellar history [1] - The observation was a significant extension of the Tianwen-1 mission, providing valuable experience for future asteroid exploration with Tianwen-2 [1][2] Group 1 - The Tianwen-1 team began preparations for the Atlas observation in early September, facing challenges due to the object's distance of approximately 30 million kilometers and its high speed of about 58 kilometers per second [2] - The observation required advanced control of the orbiter's attitude and imaging strategy, as Atlas is significantly dimmer than Mars, being 10,000 to 100,000 times darker [2] - The high-resolution camera on Tianwen-1, originally designed for bright Mars surface imaging, was successfully adapted for this challenging observation task [2] Group 2 - The Tianwen-1 probe has been in stable operation since entering Mars orbit in February 2021, with a total operational duration of 4 years and 8 months [3]

Core Insights - The Chinese lunar exploration program has made significant advancements during the "14th Five-Year Plan" period, achieving historic milestones in lunar sample collection and exploration [2][3][5] - The Chang'e 6 mission successfully collected approximately 1935.3 grams of lunar soil from the far side of the moon, marking the first time humanity has retrieved samples from this region [5][19] - The program has contributed to the global scientific community, with over 1900 research papers published based on data from the lunar exploration missions [7] Group 1: Chang'e Missions - Chang'e 5 returned 1731 grams of lunar samples from the moon's near side, completing China's first lunar sample return mission [3][5] - The Chang'e 6 mission, launched on May 3, 2024, successfully returned with samples from the moon's far side after a 53-day journey [5][19] - The Chang'e program has followed a "orbit, land, return" strategy since its inception in 2004, with significant achievements in lunar exploration [2][3] Group 2: Scientific Contributions - The discovery of a new mineral, "Chang'e Stone," has filled an international gap in lunar mineralogy [7] - Research on the samples collected by Chang'e 6 has revealed that the South Pole-Aitken Basin formed approximately 4.25 billion years ago [7] - The lunar exploration efforts are paving the way for future missions, including Chang'e 7 and 8, which aim to explore the lunar south pole and validate resource utilization techniques [9][21] Group 3: Future Missions and Goals - Chang'e 7 is set to land in the lunar south pole region to search for evidence of water ice, while Chang'e 8 is planned for around 2029 to support the construction of an international lunar research station [9][11] - The ongoing lunar exploration efforts are expected to establish the moon as a potential hub for deep space exploration [21] - The Chinese space program is also planning a kinetic impact demonstration mission to test asteroid defense strategies [25]

Core Viewpoint - The article discusses China's comprehensive plans for asteroid detection and defense, emphasizing the urgency and collaborative spirit in addressing potential threats to Earth from asteroids [1][2][4]. Group 1: Asteroid Threats and Historical Context - Historical asteroid impacts, such as the one that led to the extinction of dinosaurs 66 million years ago and the Chelyabinsk event in 2013, highlight the ongoing risks posed by asteroids to Earth's biosphere [1]. - The need for a robust asteroid defense system is underscored by these historical events, prompting proactive measures from nations [1]. Group 2: China's Asteroid Defense Initiatives - China's asteroid defense efforts are part of a long-term strategic plan, as outlined in the 2021 white paper on space activities, which calls for the establishment of a near-Earth object defense system [2]. - The timeline for China's kinetic impact demonstration mission has been accelerated to 2023, reflecting a heightened awareness of space threats and confidence in technological advancements [2]. - The proposed "flyby + impact + flyby" mission design aims to gather detailed parameters of a target asteroid before executing a high-speed impact, followed by an assessment of the impact's effects [2]. Group 3: Monitoring and Early Warning Systems - China is developing a comprehensive monitoring and early warning system for near-Earth objects, integrating ground-based and space-based observation networks [3]. - Successful tracking of asteroid 2024 RW1 by the Purple Mountain Observatory demonstrates significant progress in China's asteroid monitoring capabilities [3]. Group 4: International Collaboration and Responsibility - China promotes the concept of a shared human destiny, viewing asteroid defense as a global endeavor, and has joined the International Asteroid Warning Network [4]. - The country emphasizes international cooperation in monitoring, data sharing, and joint research, with plans for collaborative observation during the kinetic impact mission [4]. - China's approach to asteroid defense reflects a commitment to global safety and the sharing of scientific knowledge, aiming to enhance collective understanding and preparedness against asteroid threats [4].

Core Insights - The Parker Solar Probe has successfully completed another close flyby of the Sun, reaching a distance of approximately 6.2 million kilometers from the solar surface, and traveling at a speed of about 687,000 kilometers per hour, setting new distance records since late last year [1][3] - The probe aims to gather data on the solar atmosphere and solar wind, addressing scientific questions regarding the high temperature of the corona, the acceleration of solar wind, and the origins of high-energy solar particles [2][4] Group 1: Parker Solar Probe's Mission and Achievements - Since its launch in August 2018, the Parker Solar Probe has conducted 24 close flybys of the Sun, leading to significant discoveries such as the magnetic field reversal structure of solar wind and the confirmation of a dust-free zone near the Sun [3] - The probe is equipped with four advanced instruments designed to measure various physical parameters of solar wind and capture images of solar disturbances, ensuring its functionality under extreme solar radiation through a specially designed thermal protection system [2][3] Group 2: Solar Activity and Its Implications - The Sun exhibits an approximately 11-year cycle of activity, currently in its 25th solar cycle, characterized by an increase in sunspot numbers and complex magnetic structures, leading to frequent solar flares and coronal mass ejections that significantly impact the Earth's space environment [3][4] - Other international missions, including the European Solar Orbiter and China's Kuafu-1 and Xihe satellites, are also observing solar activity to enhance understanding of solar phenomena and improve predictive capabilities regarding solar storms, which can affect critical infrastructure on Earth [4]

Core Insights - China's lunar exploration program has achieved significant scientific research results from the samples returned by the Chang'e 6 mission, showcasing the country's capabilities in planetary science and laying the groundwork for future studies on the moon's formation and evolution [1][3]. Group 1: Scientific Achievements - Over the past year, Chinese scientists have made several groundbreaking advancements in the study of samples returned by the Chang'e 6 mission, which have garnered considerable attention in the international academic community [3]. - The Chang'e 6 mission's sample collection from the moon's far side has been recognized as a critical task in lunar exploration, particularly in the context of the South Pole-Aitken Basin, drawing global scientific interest [5]. Group 2: Future Missions - The Chang'e 7 lunar probe is scheduled for launch around 2026, with a focus on environmental and resource exploration in the South Pole-Aitken Basin, particularly in the search for water ice, which is essential for future lunar base construction [8]. - The primary objectives of the Chang'e 7 mission include investigating the presence of water on the moon and deploying a seismometer to study the internal structure of the moon, comparing the differences between the near and far sides [10].