According to data previously released by UCS Satellite Database, as of May 2022, the total number of satellites in orbit around the world has reached 5,465. Among them, the United States has the largest proportion, and its total number of satellites accounts for about 63% of the total number of satellites in orbit. In fact, satellites are sometimes like "cameras", so it is often very easy for the United States, which has so many satellites, to spy on the ground in other countries. For example, in 2014, the American satellite Landsat-8 made a major discovery. The satellite photographed the Desert Eye in Inner Mongolia, China. As we can see from this picture, on the Badain Jaran Desert, there are many pits densely appearing on the satellite map, which makes people get goosebumps. NASA named these "pits" the Eyes of the Desert. Do you also feel a little creepy when you see such photos? So, what exactly is Eye of the Desert? How did it form? OK, that and more is exactly what we are going to talk about. Let’s get started!