Chinese Space Agency Develops Innovative In-Situ Propellant Production Technology
Astronauts on board China’s Tiangong space station have made a groundbreaking discovery by creating rocket fuel and oxygen using artificial photosynthesis. This innovative technology mimics the natural process of plant photosynthesis, converting ‘carbon dioxide and water into oxygen and ethylene‘ , a hydrocarbon commonly used in spacecraft propellants.
The team used semiconductor catalysts to facilitate the reaction, which can take place at room temperature and standard atmospheric pressure. This approach differs from conventional methods like electrolysis on board the International Space Station , which requires significant energy input. By leveraging semiconductor catalysts, Chinese researchers hope to reduce the energy requirements for oxygen production in space.
The successful experiment paves the way for future interplanetary missions by providing a reliable source of breathable air and rocket fuel. This technology could be particularly beneficial for China’s planned moon base , which is scheduled to be completed by 2035. The ability to produce oxygen and rocket fuel on-site would significantly reduce reliance on resupply missions from Earth.

China has announced plans to establish a permanent lunar base, with the goal of conducting extensive scientific research and exploration.
The base will serve as a hub for missions to the moon's south pole, where scientists believe water ice may be present.
China's space agency, CNSA, aims to send its first crewed mission to the moon by 2024, followed by the establishment of a permanent base.
This ambitious project is part of China's long-term plan to become a major player in lunar exploration and development.
While the concept has yet to be extensively tested in extreme environments like Mars , its feasibility is promising. If confirmed, artificial photosynthesis could revolutionize space exploration by enabling more efficient use of resources, reducing energy consumption, and increasing the sustainability of long-duration missions.
Artificial photosynthesis is a process that mimics the way plants convert sunlight into chemical energy.
Scientists are working to develop artificial systems that can efficiently capture and convert sunlight into fuels, such as hydrogen or methane.
This technology has the potential to reduce greenhouse gas emissions and provide a sustainable source of energy.
Researchers have made significant progress in recent years, with some experiments achieving high efficiency rates.
However, scaling up these systems for practical use remains a challenge.
The breakthrough technology has sparked interest among experts, who acknowledge its potential for providing critical technical support for human survival and exploration in outer space. As China continues to push the boundaries of space research, this innovation is likely to play a significant role in shaping the future of interplanetary travel.