China’s now orbiting Shenzhou-18 crew onboard the country’s Tiangong space station have completed the assembly, testing and outside attachment of a second material exposure experiments. The three Chinese astronauts — Ye Guangfu, Li Cong and Li Guangsu — were sent to the space station for a six-month mission on April 25. A tribology experiment box […] Read More – Leonard David’s INSIDE OUTER SPACE