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For The First Time, China’s Tiangong Station Achieved Artificial Photosynthesis In Orbit. The Shenzhou-19 Crew Used A Catalyst To Turn CO₂ & Water Into Oxygen & Ethylene (A Rocket Fuel Precursor) At Room Temp & Normal Pressure. It’s More Energy-Efficient Than The ISS’s Electrolysis, Marking A Major Step For Sustainable Air & Fuel In Space.

artificial photosynthesis: Chinese astronauts make first-of-its-kind artificial photosynthesis in space; here's how they did it – The Economic Times

https://economictimes.indiatimes.com/news/international/us/chinese-astronauts-make-first-of-its-kind-artificial-photosynthesis-in-space-heres-how-they-did-it/articleshow/117755375.cms?from=mdr

Chinese astronauts on the Tiangong space station have successfully produced oxygen and rocket fuel through artificial photosynthesis.