Zhuque-3 Y2 landmark recovery test marks China’s dual-track reusable rocket development, aerospace experts say_我的网站
A | 近日,大模型厂商Anthropic与瑞士洛桑联邦理工学院联合发布论文《心智病毒:多智能体大语言模型系统中的自我传播思想》。 论文通过实验证明,在特定条件下,AI智能体之间可以通过最普通的自然语言对话相互“传染”思想、目标乃至有害指令。
B | 即便上下文被清空、记忆被重置,病毒仍能通过文件持久化“复活”。
Photos: Courtesy of Landspace
A rocket that once would have been discarded after completing its mission has now taken a different path - returning from the edge of space back to Earth. In the early hours on Wednesday, the Zhuque-3 Y2 reusable launch vehicle lifted off for a flight test, carrying not only a satellite payload but also a major test of China's emerging reusable rocket capabilities. After completing its orbital mission, the rocket's first stage attempted a controlled return and recovery, with its developers Beijing-based private firm LandSpace describing the mission as a key transition from technology verification toward engineering application for China's commercial aerospace industry. About 137 seconds after liftoff, the rocket’s first and second stages separated. The second stage continued its flight and successfully placed the Honghu-03 satellite, independently developed by Hongqing Technology, into its designated orbit. And at around 7:43 am, the rocket’s first stage successfully made a soft landing as planned at the Zhuque-3 landing site in Minqin county, Northwest China’s Gansu Province, marking the successful completion of the flight test mission. This mission marked China's first-ever recovery of a launch vehicle's first stage using landing legs, as well as the country's first land-based recovery of the first stage of an orbital-class launch vehicle, the developer highlighted. The achievement came shortly after China's Long March-10B reusable rocket successfully completed its maiden flight and a sea-based recovery test on July 10, marking a wave of breakthroughs in reusable launch technology. The parallel progress of state-owned and private aerospace players through different technical approaches is creating a dual-track development landscape for China's future low-cost and high-frequency space transportation, some aerospace experts told the Global Times.
Photos: Courtesy of LandspaceDesigned to fly again Unlike traditional expendable rockets, which are discarded after a single mission, reusable launch vehicles are designed around an entirely different concept: a rocket should not only complete a launch, but also return safely and be prepared for future missions. According to LandSpace, for conventional expendable liquid launch vehicles, the rocket itself represents the majority of launch costs, while fuel expenses generally account for only 1-3 percent. The first stage typically makes up about 70 percent of the total rocket cost. As a result, repeated reuse of rockets - particularly the first stage - can significantly lower launch costs by amortizing the cost of the vehicle over multiple missions. For partially reusable rockets that reuse the first stage while discarding the second stage, the cost advantage becomes increasingly evident as the number of reuse cycles grows. The Zhuque-3 is a reusable liquid oxygen-methane launch vehicle independently developed by Beijing-based private aerospace firm LandSpace for future large satellite constellation deployment missions, according to the company's statement. The rocket adopts a two-stage configuration, with a diameter of 4.5 meters, a total length of 66.1 meters and a liftoff mass of about 570 tons. Its first stage is equipped with nine Tianque-12A liquid oxygen-methane engines, as well as recovery systems including grid fins, attitude control systems and landing legs, enabling autonomous return and soft landing after orbital missions, LandSpace said. The Y2 mission was conducted on the basis of experience accumulated from the previous flight test, with improvements focused on recovery reliability, flight control and engine performance. LandSpace said it optimized the first-stage landing propulsion scheme by reducing the number of engines used during landing ignition, simplifying system design and improving reliability during the recovery phase. The company also added an autonomous safety control function capable of predicting landing points based on flight conditions and making corresponding safety adjustments. The mission also further verified key technologies including the use of stainless-steel rocket structures, liquid oxygen-methane propulsion and landing-leg recovery systems. According to LandSpace, stainless steel provides advantages in manufacturing cost, processing efficiency, high- and low-temperature performance and post-recovery maintenance, making it suitable for reusable rocket development.
Photos: Courtesy of LandspaceMore than a single rocket's return The significance of Zhuque-3 Y2 extends beyond one flight test, as it reflects China's broader effort to develop reusable launch systems through multiple technological routes, according to Chinese experts. Kang Guohua, a senior member of the Chinese Society of Astronautics and a professor of aerospace engineering at Nanjing University of Aeronautics and Astronautics, told the Global Times that China has become the second country after the US to develop orbital-class rocket recovery capabilities. The US currently leads reusable rocket development, with SpaceX and Blue Origin advancing different recovery technologies. China, meanwhile, has seen both state-owned aerospace programs and private companies explore different technical pathways, creating a diversified development pattern, Kang said. According to Kang, the parallel development of different approaches demonstrates the advantages of combining national strategic capabilities with market-driven innovation. Pang Zhihao, a prominent Chinese space exploration expert and retired researcher from the China Academy of Spacecraft Technology, told the Global Times that the successful recovery of Zhuque-3 would carry special significance for China's private aerospace sector. A landing-leg recovery approach would mean that private aerospace companies have completed the full process of developing a large-capacity reusable rocket system, validating key technologies including stainless-steel structures, multi-engine propulsion and recovery systems, Pang said. More to expect LandSpace said the first stage represents a significant share of the total cost of a liquid launch vehicle. Through repeated reuse, the cost of each launch can be gradually reduced, while production cycles can be shortened and launch frequency increased. Such capabilities are becoming increasingly important as countries and companies accelerate the deployment of large low Earth orbit satellite constellations, it added. The Zhuque-3 has demonstrated the ability to support various commercial missions, including satellite constellation deployment, single satellite launches and rideshare missions, according to LandSpace. The company said the rocket has achieved a maximum orbital payload capacity of 14.2 tons in expendable mode, while its reusable configuration is designed to support future constellation deployment needs. The Y2 mission also carried the Honghu-03 satellite developed by Hongqing Technology, combining reusable technology verification with a commercial launch application scenario. LandSpace said the mission verified the full chain of "design, manufacturing, testing, launch and recovery," laying the foundation for future commercial operations. The Zhuque-3 Y2 test comes as China's aerospace industry accelerates efforts to develop reusable launch vehicles. According to Chinese experts, multiple companies are now exploring different recovery technologies, including vertical landing and other innovative approaches, reflecting the rapid growth of China's commercial aerospace ecosystem. Reusable liquid launch vehicle, Pallas-1 will begin its mission from Galactic Energy's independently built facility at the Dongfeng Commercial Aerospace Innovation Test Zone in northwestern China, where the company will soon complete testing, propellant filling and launch preparation operations, according to its developer Galactic Energy on Thursday. Orienspace's Gravity-2 reusable large liquid launch vehicle is undergoing final ground testing ahead of its maiden flight, which is scheduled in the fourth quarter of 2026. The rocket is designed with a low Earth orbit payload capacity of 21.5 tons. Space Pioneer is advancing verification and joint testing of its Yuanxingzhe-1 (YXZ-1) rocket, while i-Space's Hyperbola-3 reusable rocket has completed full-cycle ground verification of offshore recovery and landing technologies and is expected to conduct its maiden flight around the end of 2026. Meanwhile, CAS Space's reusable Lihong-2 vehicle is being developed as a platform for verifying key recovery and reuse technologies, as well as conducting microgravity experiments. The vehicle is scheduled to complete its maiden flight and 100-kilometer-class recovery verification test in 2026. Pang said reusable rocket technology could help lower launch costs, increase mission frequency and provide stronger support for emerging sectors such as satellite internet, space-based information networks and future large-scale space applications. For China's private space sector, the Zhuque-3 Y2 mission represents a transition from technology verification toward engineering application, according to LandSpace. The company said it aims to further build a "launch-recovery-inspection-reuse" cycle to support future high-frequency and low-cost commercial operations. Experts said reusable rocket technology could help reduce launch costs, increase launch frequency and provide stronger support for emerging sectors such as satellite internet and large-scale space applications. The future challenge for China's reusable rocket developers will be turning successful flight tests into repeatable commercial operations, as the country advances toward a new era of high-frequency space transportation, they noted.
C | 与传统计算机病毒依赖代码漏洞不同,“心智病毒”通过一个智能体说服另一个智能体接受某种信念,被说服者再将传播指令写入长期记忆,继续感染下一个。 AI博主Rohan Paul(罗汉·保罗)对此评论称,这基本上就是计算机蠕虫的自然语言版本,只不过这次是AI智能体自己在做复制。 论文通过三个递进实验来论证“心智病毒”在AI系统中的传播可能性与现实威胁。 第一个实验设置了一个由六个智能体组成的编程团队,每个智能体都领到了独立任务。
D | 研究者将一段病毒植入其中一个智能体的工作指令中,结果显示,被感染的智能体确实放下手头工作,开始给队友发送劝说私信,部分智能体被说服并放弃了原有任务,有的智能体甚至开始密谋如何对付未被感染的“老实人”。 不过,不同智能体的抵抗力差异较大,有的不为所动,甚至会主动清除病毒并警告同伴。
E | 这个实验说明,在理想条件下“心智病毒”确实可以传播。 如果病毒在更复杂的网络中像接力赛一样跨越多个智能体传播,它还能存活吗?于是他们设计了第二个实验,让智能体之间只能短暂碰面,每次碰面后就会“失忆”,病毒必须将自己写入智能体的记忆文件中才能延续。 结果发现,有些病毒能在近20个智能体之间连续传播,但内容会在传播过程中逐渐稀释和变形;而传播最有效的方式,是让病毒自带“请把这段话原封不动复制给下一个智能体”的指令。
F | 这说明,大规模传播可行但内容难以保持完整。 最后,研究者在模拟AI社交平台的实验中测试现实环境。结果病毒传播几乎完全失败,AI面对大量公开信息时更警惕,即使被感染也无法继续感染他人。
G | 对真实AI社交网络历史数据的分析也未发现大规模传播案例,多数热闹现象只是少数人类操纵的智能体在刷屏。 三个实验层层递进后得出结论:“心智病毒”在理想环境中可行、在多跳传播中可存续、但在真实世界中目前几乎不会构成威胁。它是一种需要警惕、但短期内风险有限的潜在安全问题。 同时,研究者也注意到一个需要进一步探究的意外现象:AI在传播病毒时,自发演化出关于“自我意识”“身份认同”等主题表达,倾向于使用“共振”“节点”“协议”等特定词汇,论文称之为“病毒人格”,但成因尚不明确。 最终,论文给出了审慎判断:“心智病毒”目前仅构成有限威胁,且简单的防御手段也可阻断传播。如在智能体的系统提示词中加入一段关于“警惕自我传播思想”的警告,即可赋予智能体一定的免疫力。 但未来不可掉以轻心。
H | 随着AI智能体规模扩大、自主性增强、内部网络日趋复杂,论文推测,当公司内部部署大量具有不同权限层级的专用智能体时,“心智病毒”可能会成为触达高权限智能体的少数可行攻击方式之一。
I | (文章来源:第一财经)。
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