Why Is China Building These Gigantic Structures In the Middle of the Desert?

[BrAinPaiNt]

Why not use the Great wall of...wait for it...China. I am sure it is not going anywhere. :

 

[zrinkill]

40 - 30 year old technology.

 

[TheCount]

40 - 30 year old technology.

Yeah, from what I read about it last night, they said the US used to do the same thing... 40+ years ago. Chances are the targets long defunct or China is operating some really old satellites still.