Astronaut Tom Jones: We looked repeatedly on our passes over China for any visible signs of the Great Wall, but even viewing enlargements of these prints, looking at where the Wall should be, proved fruitless. The wall is made of stone or earth that matches the local landscape, and would only cast a long shadow under ideal lighting conditions. So, we could not see the Great Wall of China from space. Other astronauts have had a bit more luck.
NASA: Photographed through the Space Shuttle Endeavour’s flight deck windows, this 70mm frame shows a small section of China’s Yellow River (Huang Ho) highlighted by sunglint reflection off the surface of the water. The river flows northeastward toward the village of Tung-lin-tzu. The low dissected mountains that cover more than half of this scene rise some 2,000 feet (on the average) above the valley floor. A major east-west transportation corridor (both railway and automobile) is observed traversing the landscape north of the river. This entire region is considered to be part of the Ordos Desert, actually part of the greater Gobi located just north of this area. Approximate center coordinates of this scene are 37.5 degrees N latitude and 105.0 degrees E longitude.
WinEarthFavsAsiaAstronaut FavsChinaDayTom JonesWindows on EarthYellow Rivergeo
From STS068 all