Is the Great Wall of China really visible from space?

No. Even from low Earth orbit the Great Wall of China is extremely hard to spot with the naked eye.

18th June 2014
Great Wall of China

Asked by: Chris Tuttle, Edinburgh

No. Even from low Earth orbit the Great Wall of China is extremely hard to spot with the naked eye. It’s a very thin line, almost the same colour as the landscape. Lots of other things are visible though, including cities, airports and dams. From the Moon, no man-made structure is visible.