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ISS - Alexander Gerst explains: Can you see the Great Wall of China from space?

The Great Wall of China is so big that you can even see it from the moon - it's an ancient space myth. It is wrong to claim that the moon is so far away that one cannot see a single man-made object on earth from there. But how is it on the International Space Station (ISS) - which is not around 400,000 kilometers, but only 400 kilometers from Earth?

Alexander Gerst writes on Twitter that he has been asked a thousand times whether the Great Wall of China is visible from the ISS and provides the photo proof. “Difficult with the naked eye,” says the German astronaut. But in the photo he took with a telephoto lens, you can actually see the wall - if you know where to look. However, the surrounding structures, buildings and streets can be seen more clearly.

Far more spectacular is the picture of an aurora australis (that's how the northern lights are called in the southern hemisphere), which Gerst published on Twitter on Wednesday. A special sight for astronauts too:

Alexander Gerst took off on his second mission to the International Space Station on June 6th.

From asu / RND