Jonathon Hill, a research technician at the Mars Space Flight Facility at Arizona State University, who works with images of the Martian surface taken by rovers and satellites, as well as data from Earth-orbiting NASA instruments has provided some explanation for unusual structures in China's desert. These are newfound Google Maps images which reveal an array of mysterious structures and patterns etched into the surface of China's Gobi Desert.
(H/T Singularity Hub)
This Stonehenge-like arrangement of objects radiating outward, with fighter jets at its center, is almost certainly a calibration/test target for orbital radar instruments, Hill said. The bumps in the terrain around the planes scatter radar away from the area, partially masking the planes. By testing radar return from this structure using radar instruments flying overhead, Chinese radar experts can learn how best to hide China's military operations from other countries' spy satellites.
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