Briefly talk about what is the "Chang 'e Project"

Launching artificial earth satellites, manned space flight and deep space exploration are the three major areas of human space activities. Returning to the moon, developing lunar resources and establishing a lunar base have become the inevitable trend and competitive hotspot of world space activities. Carrying out lunar exploration is an important measure for China to take the first step in deep space exploration. Exploring the moon will be a breakthrough in China's deep space exploration. The moon has become the focus of future space powers for strategic resources. The moon has various unique resources for human development and utilization. The unique minerals and energy on the moon are important supplements and reserves of the earth's resources and will have a far-reaching impact on the sustainable development of human society. Chinese lunar exploration is China's independent exploration and observation of the moon, also known as Chang 'e Project. After the State Council officially approved the lunar exploration project, the lunar exploration leading group named the project "Chang 'e Project" and named the first lunar satellite "Chang 'e-1". Chang 'e-1 satellite was developed by China Academy of Space Technology. It is mainly used to obtain three-dimensional images of the lunar surface, analyze the distribution characteristics of related material elements on the lunar surface, detect the thickness of lunar soil and detect the space environment of the earth and the moon. Chang 'e IV is the backup star of Chang 'e III. According to the three-step strategy of "circling", "falling" and "returning" in China's lunar exploration project. And plans to build a research base on the moon.