Group 1 - China's successful launch of the experimental satellite No. 31 on October 13, 2023, marks a significant advancement in satellite internet construction, with the satellite primarily aimed at validating new optical imaging technology [2] - The satellite internet industry is experiencing accelerated support policies and licensing issuance, with projections indicating that by 2030, the market size for satellite internet manufacturing in China could reach between 25 billion to 46 billion yuan, ground equipment market size could reach 26.7 billion yuan, and service market size could reach 22.7 billion yuan [2] Group 2 - The 30th International Atomic Energy Agency Fusion Energy Conference is being held in Chengdu from October 13 to 18, 2025, covering various topics including magnetic confinement, inertial confinement, and fusion technology [3] - Significant progress has been made by the China National Nuclear Corporation in key technologies for fusion energy extraction, establishing a research platform for liquid metal and helium gas working fluids, which is now fully operational [3] - The establishment of a comprehensive research system for liquid metal and helium cooling technology at an internationally leading level lays a crucial experimental foundation for the engineering application of future fusion reactors, with a positive long-term outlook for the nuclear fusion sector driven by ongoing construction investments and large-scale orders for key components [3]

Core Points - China successfully launched the experimental satellite No. 31 using the Long March 2D rocket on October 13, 2023, marking a significant achievement in its space exploration efforts [1][2][3] Group 1: Launch Details - The launch took place at the Jiuquan Satellite Launch Center at 18:00 Beijing time [1] - This mission represents the 101st flight of the Long March 2D rocket and the 599th flight of the Long March series of rockets [2] - The Long March 2D rocket is a two-stage liquid-fueled rocket capable of launching single and multiple satellites into various orbits, with a payload capacity of 1.3 tons to a 700 km sun-synchronous orbit [2] Group 2: Technical Achievements - The Long March 2D rocket has maintained a 100% success rate since its first flight in 1992 [2] - The satellite launched is primarily intended for the verification of new optical imaging technology [1]

记者从中国航天科技集团获悉，10月13日18时00分，长征二号丁运载火箭在酒泉卫星发射中心点火升空，随后将试验三十一号卫星送入预定轨道，发射任 务取得圆满成功。 本次任务是长征二号丁运载火箭的第101次发射，也是长征系列运载火箭第599次发射。 （图片来源：我们的太空） 科技日报记者 付毅飞 本次任务的卫星和火箭均由中国航天科技集团八院抓总研制。试验三十一号卫星主要用于开展新型光学成像技术验证。长征二号丁运载火箭是一型常温两 级液体运载火箭，具备发射不同轨道要求的单星、多星能力，700公里太阳同步轨道运载能力为1.3吨。自1992年8月9日首飞起，该型火箭已实现"百发百 胜"，目前该火箭已形成一套成熟高效的发射流程。 ...

（文章来源：央视新闻） 我国成功发射试验三十一号卫星。 ...