On an orbit over 400 kilometers away from Earth, the Chinese space station has traveled into the sky, becoming one of the important milestones in China's aerospace industry. Looking at the northeast corner of China, a space environment ground simulation device called the "Ground Space Station" was officially completed recently and has entered the trial operation stage, with many indicators reaching world leading levels. As the first large scientific device in China's space field, the "Ground Space Station" is the first comprehensive research device with the most comprehensive environmental factors in the world, which can achieve multi-scale and cross scale environmental effects research. It will contribute wisdom and strength to the development of China's space industry and human Space exploration. Realizing a Dream: Building a "space station" on Earth in a harsh and complex space environment not only tests the reliability of spacecraft, but also challenges the health and safety of astronauts. How to enhance the ability to explore the universe is an urgent problem to be solved. "If you want to fly farther, stay longer, and explore more carefully, you need to know more about the space environment." Li Liyi, Executive Deputy Commander in Chief of the Space Environment Ground Simulation Device and President of the Institute of Space Environment and Material Science of Harbin Institute of Technology, said that the "ground space station" is to build a basic scientific research platform similar to the real space environment on the earth, which is equivalent to building the "space station" on the earth. The "Ground Space Station" is located in the Science and Technology Innovation City of Harbin New District, Heilongjiang Province, and was built by Harbin Institute of Technology in conjunction with China Aerospace Science and Technology Corporation. In the construction of the park, there are four experimental buildings, namely "one large and three small". The "one large" refers to the space comprehensive environment experimental building, and the "three small" refers to the space plasma science experimental building, space magnetic environment science experimental building, and animal culture room. According to the design plan, the "ground space station" can simulate nine categories of space environmental factors, such as vacuum, high and low temperature, charged particles, electromagnetic radiation, space dust, plasma, weak magnetic field, neutral gas, Micro-g environment, and can explain the impact of space environment on materials, devices, systems, and life forms. Compared to moving experimental instruments and equipment into space, a "ground space station" can not only save costs and reduce safety hazards, but also set specific environmental factors based on scientific issues and engineering needs, without being limited by time and space for multiple repeated verifications, thus creating safer and more convenient experimental conditions and research methods. As the circular arch slowly moved, the lunar dust chamber came into view, which was the "Simulated Moon" experimental module. In the space of more than one person, the platform of one meter square is shining with silver light, and the Searchlight and ray source hanging on the top have different shapes. Sun Chengyue, a member of the team, said that the lunar dust capsule has overcome a number of key technologies, such as the integration of multi-source irradiation charging equipment, the uniform sprinkling of small dust, the optical in-situ online detection of strong electrostatic environment, and will provide a scientific research platform for China's lunar exploration project, the construction of the lunar base, Human spaceflight and other major aerospace projects. "In the future, many experiments that need to be carried out in space can be completed on the ground," said Yan Jihong, vice president of the Institute of Space Environment and Material Science of Harbin Institute of Technology, which is the dream of scientists. Challenge: Talking about the origin of "ground space stations" when sitting on a "cold bench", Li Liyi said that the space environment leads to frequent aerospace failures, which has become a constraint on the longevity and high performance of spacecraft