What is the significance of cosmic activities?

Generally speaking, there are four aspects: economically, space activities have high economic and social benefits. A variety of application satellites have made great contributions to mankind in communication and broadcasting, resource investigation, environmental monitoring, weather forecasting, navigation and positioning, etc. According to the research and analysis of some countries, the investment benefit ratio of space technology is above 1: 1. More far-reaching significance is that space activities will provide mankind with infinitely valuable resources. Militarily, many military experts believe that whoever has the spatial advantage will have the military strategic advantage. Over the years, superpowers have been developing strategic nuclear weapons. In order to select targets, improve hit accuracy and understand the enemy's military deployment, they are competing to develop reconnaissance satellites, which are the eyes and ears of intercontinental missiles and have become supporting projects of strategic nuclear weapons. The development of communications, navigation and other satellites has also greatly enhanced the country's military strength. The continued development of space technology will have a revolutionary impact on the military. In science and technology, space activities drive and promote the development of many disciplines. First of all, space activities have promoted technological development, such as electronic technology, remote sensing technology, jet technology, automatic control technology, etc. Secondly, it will greatly promote basic science, including important new discoveries in life science, the formation and development of the universe, etc. Third, many marginal disciplines have been formed, such as space technology, space materials science, space biology, satellite geodesy, satellite meteorology, satellite oceanography and so on. Politically, space technology has greatly improved the country's comprehensive national strength and its position in international activities. Many major issues discussed internationally are related to space, and the summit meeting of world powers is also inseparable from this issue. Because of the significance of space technology, there are more and more countries participating in the development of space today, reaching more than 6, and countries applying the achievements of space technology are almost everywhere in the world.