The Long March II carrier rocket used to launch Mozi satellite is a two-stage liquid carrier rocket developed by Shanghai Aerospace Technology Research Institute under China Aerospace Science and Technology Corporation.
The rocket was launched in February 1990. It was formed by reducing three stages and improving adaptability on the basis of the Long March 4A rocket. It is mainly used to launch recoverable satellites in near-earth orbit and sun synchronous orbit with high reliability and good economy.
The significance of the successful launch of Mozi
The successful launch of Mozi will make China realize the quantum communication between satellite and ground for the first time in the world, and build a quantum secure communication and scientific experiment system integrating heaven and earth.
The successful launch and on-orbit operation of quantum satellites will help China to maintain and expand its international leading position in the practical level of quantum communication technology, realize the leap-forward improvement of national information security and information technology level, and is expected to promote China scientists to make a major breakthrough in the frontier field of quantum science, which is of great significance to promoting the sustainable development of China space science satellite series.