Group 1 - The successful demonstration of satellite laser ranging technology for the new generation lunar space laser retroreflector marks a significant breakthrough in precise measurement technology in deep space orbits, achieved by the "Tiandu No. 1" satellite navigation technology experimental team [1] - The completion of all components for the world's largest and strongest pulsed superconducting electromagnet system by the ITER organization represents a milestone achievement in fusion energy, with the final component being the sixth module of the central solenoid manufactured in the USA [1] - The engineering assembly of the compact fusion energy experimental device (BEST) has officially started two months ahead of schedule, aiming to demonstrate fusion energy generation for the first time, building on the previous EAST device [1] Group 2 - The launch of Jiangsu's first incremental distribution network virtual power plant signifies a step forward in smart energy management, with the platform integrating 26 megawatts of distributed solar power, 105 kilowatts of energy storage, and 145 megawatts of adjustable load [1]

Core Viewpoint - The successful laser ranging technology test conducted by the "Tiandu-1" satellite research team marks a significant breakthrough in China's precision measurement capabilities in deep space, being the first of its kind to be performed during daytime conditions [1][3]. Group 1: Technological Advancements - The "Tiandu-1" satellite laser ranging test was conducted under strong sunlight interference, which previously limited such experiments to nighttime due to weak echo signals being overwhelmed by background noise [1][3]. - The new generation lunar space laser corner reflector developed by the Shanghai Astronomical Observatory weighs only 1.3 kg and features a large aperture single corner design, enhancing its reflective capabilities [3][6]. - The research team overcame several technical challenges, including speed matching, far-field diffraction design, and passive thermal control of low-temperature mirrors, which were crucial for the success of the daytime laser ranging test [3][6]. Group 2: Performance and Applications - The new laser corner reflector acts like a super-reflective mirror, ensuring efficient return of laser signals to the ground station, showcasing strong reflection capability, high precision, and lightweight design [6]. - The successful test indicates that the comprehensive performance of China's independently developed lunar space laser corner reflector has reached an internationally leading level, expanding the observational window for this technology [6]. - This advancement will significantly support China's lunar space exploration and deep space missions, including the validation and implementation of major projects like the international lunar research station [6].

1.【亚马逊公司发射卫星互联网计划首批卫星】美国亚马逊公司28日使用美国联合发射联盟公司运载火箭 首次发射其卫星互联网"柯伊伯计划"的首批量产卫星。"柯伊伯计划"是亚马逊旗下的近地轨道卫星宽带网 络项目。其目标是在近地轨道部署超过3200颗卫星，为全球用户提供快速、可靠的互联网服务。（环球 时报） 2. 【 索尼集团据悉考虑分拆半导体业务，或最快今年完成 】 4月29日消息，据知情人士透露，索尼集团 正在考虑分拆其半导体部门，此举将标志着这家PlayStation制造商精简业务并专注于娱乐领域的最新举 措。因讨论未公开信息而要求匿名的知情人士表示，索尼半导体解决方案集团的分拆和上市可能最快于 今年进行。其中一位知情人士称，索尼考虑将所持的半导体业务的大部分股份分配给股东，并可能在分 拆后保留少数股权。（财联社） 3. 【 我国成功发射卫星互联网低轨卫星 】 4月29日消息，4月29日4时10分，我国在文昌航天发射场使用 长征五号乙运载火箭/远征二号上面级，成功将卫星互联网低轨03组卫星发射升空，卫星顺利进入预定轨 道，发射任务获得圆满成功。这次任务是长征系列运载火箭的第573次飞行。（央视新闻） 此外，如果您 ...

Core Viewpoint - The successful completion of the lunar laser ranging technology test by the "Tiandu-1" satellite under daytime strong light interference marks a significant technological breakthrough for China in the field of precise measurement in deep space orbits [1] Group 1: Technological Achievements - "Tiandu-1" has successfully conducted the world's first lunar laser ranging test during the daytime, overcoming challenges posed by strong solar light interference [1] - The test involved precise tracking and signal capture of weak satellite echo signals, which are typically difficult to identify due to background noise during the day [1] - This advancement expands the observational window for laser ranging technology, supporting major deep space exploration projects such as the International Lunar Research Station [1] Group 2: Mission Details - "Tiandu-1" was launched in March 2024 alongside the "Qiao Qiao-2" satellite, with its core mission focused on validating new communication and navigation technologies for future lunar communication and navigation constellation systems [1] - The satellite has already completed multiple new technology tests in orbit, demonstrating its capabilities and contributions to the field [1]