The Great Wall of China is NOT visible from space with the naked eye
The claim that the Great Wall of China is visible from space is one of the most persistent myths in popular culture. The Wall is roughly 5–9 metres wide — far too narrow to see from orbit without optical aids. Even Chinese astronaut Yang Liwei, after his 2003 spaceflight, confirmed he could not see it. The confusion may stem from the Wall's enormous length (over 21,000 km), but length alone doesn't help visibility from 400km up — width does.
This 'fact' appears in countless textbooks, films, and conversations worldwide. Discovering it's wrong doesn't just correct one fact — it raises the question of how many other 'everyone knows' facts are similarly unfounded.
“The Great Wall of China is NOT visible from space. Chinese astronaut Yang Liwei confirmed this after his 2003 spaceflight. The myth appears in countless textbooks. 🧱 #OddlyHuman”