Core Viewpoint - The article commemorates the contributions of Zhu Senyuan, a prominent figure in China's liquid rocket technology, who passed away at the age of 95, highlighting his significant role in advancing China's aerospace capabilities and technology [1][2]. Group 1: Contributions to Aerospace Technology - Zhu Senyuan was instrumental in the research and development of liquid rocket propulsion technology in China, participating in multiple key national projects [2]. - He led the development of China's first hydrogen-oxygen rocket engine, addressing major technical challenges and enabling China to become one of the few countries capable of launching geosynchronous satellites [2]. - Zhu was a key figure in the planning and verification of new-generation large launch vehicles and high-thrust liquid rocket engines, significantly contributing to the advancement of hydrogen-oxygen rocket engine technology [2]. Group 2: Professional Background - Born in October 1930 in Liyang, Jiangsu, Zhu joined the Communist Party of China in 1952 and graduated from the Moscow Bauman Higher Technical School in 1960 [1]. - He began his career in 1961 at the Ministry of Defense's Fifth Academy, where he held various leadership roles, including chief designer and expert group leader for major rocket engine projects [1]. - Zhu was elected as an academician of the Chinese Academy of Sciences in 1995, reflecting his esteemed status in the scientific community [1].