If the weather conditions are good, can the Great Wall be seen from space?

Some experts said that the narrow and irregular Great Wall with an average width of less than 10 meters is difficult to distinguish from 20 kilometers away. If the Great Wall can be seen from the moon, it is equivalent to being able to see it from 2688 meters away. Saw a strand of hair. Orlind, one of the first two astronauts to land on the moon, emphasized in an interview with Hong Kong media that this was a misunderstanding and was "caused by people's ignorance of the facts." On October 16, when China's first astronaut Yang Liwei returned to Earth, a reporter asked, have you seen the Great Wall in space? Yang Liwei replied: No.

Reference material:/kpdt/file/1290.htm