Mysterious Structures - China's Gobi Desert

See on Google Maps

These images show mysterious compositions and structures which seem to be a kind of paintings (not sure if it's painting), and installations over the Earth, they are exactly in the Gobi Desert, China. They were found the last month at Google Maps. See more;

"It turns out that they are almost certainly used to calibrate China's spy satellites.

So says Jonathon Hill, a research technician and mission planner at the Mars Space Flight Facility at Arizona State University, which operates many of the cameras used during NASA's Mars missions. Hill works with images of the Martian surface taken by rovers and satellites, as well as data from Earth-orbiting NASA instruments."
Read the full article by Natalie Wolchover at msnbc

Click on the following images to explore those places at Google Maps.

via | planetary folklore