With the successful rendezvous and docking of the Wentian experimental module and the Tianhe core module, the Shenzhou 14 astronauts entered the Wentian experimental module, and the construction of the Chinese space station took another key step. As China's first space station scientific experiment module, the sky inquiry experiment module has attracted much attention as to what experiments can be carried out in space. The reporter interviewed experts in relevant fields to interpret the experimental research to be carried out in the Wentian experimental module. The space station can provide long-term microgravity, radiation and other special research environments. It is convenient for people to participate in experimental operations, experimental module replacement and maintenance. The round-trip transportation between heaven and earth can realize the replacement of experimental modules and the return of experimental samples. "Space science is the frontier field leading the development of our science and technology. To explore how human beings survive outside the earth or study the origin of life, we must carry out relevant experiments in outer space." Wang Ke, deputy chief engineer of space application system and director of the integrated technology center of the space application center of the Chinese Academy of Sciences, said. LV Congmin, deputy chief engineer of the space application system of the manned space engineering and researcher of the space application center of the Chinese Academy of Sciences, introduced that the Wentian experimental module has planned and deployed more than 10 research topics in four fields, including space life science and biotechnology, microgravity fluid physics, space material science, and space application new technology experiments, and has approved more than 40 scientific projects. With the launch of the space probe, experimental research on higher plant culture under microgravity conditions will be carried out in orbit. After the completion of the space station, relevant scientific projects will continue to be demonstrated and implemented in a rolling manner. "In order to support the development of scientific experiments in related fields, a number of scientific experiment cabinets with a width of about 1 meter, a height of 1.8 meters and a depth of 0.8 meters have been deployed in the Wentian experimental cabin, including life ecology experiment cabinet, biotechnology experiment cabinet, variable gravity scientific experiment cabinet, scientific glove box and low temperature storage cabinet." Said LV Congmin. LV Congmin introduced that the life ecology experiment cabinet will carry out space growth experiments of animals and plants such as Arabidopsis, fruit flies and zebrafish, reveal the impact of microgravity on individual growth, development and metabolism, and promote human understanding of the essence of life phenomena. -- the biotechnology experiment cabinet takes tissues, cells, biochemical molecules and other biological samples of different levels and categories as objects, carries out experiments on cell tissue culture, spatial protein crystallization and analysis, protein and nucleic acid co origin and spatial biomechanics, explores the law and mechanism of cell growth and differentiation under microgravity environment, provides a theoretical basis for human health and reproductive development, and explores the impact of gravity effect on the origin and evolution of life. -- the variable gravity scientific experiment cabinet provides a high-precision simulated gravity environment of 0.01g to 2G for scientific experiments, adopts advanced wireless energy transmission and carrier communication technology, and supports scientific research on complex fluid physics and particle matter movement under microgravity, simulated lunar gravity, Martian gravity and other different gravity levels. -- the scientific glove box provides clean confined space and temperature and humidity environment control, and is equipped with a smart manipulator with cell level fine operation ability to provide safe and efficient support for astronauts to operate multidisciplinary experimental samples; The low temperature storage cabinet from -80 ℃ to 4 ℃ can meet the different temperature requirements of different experimental samples. -- energy particle detectors and plasma in-situ imaging detectors are deployed outside the experimental module to obtain the data of space protons, electrons, neutrons, heavy ions, plasma and other environmental factors, provide support for the health of astronauts and the safe operation of the space station, and can be used for basic research of space environment. Although the volume of the scientific experiment cabinet is small, it has powerful functions. Zhang Lu, a researcher of the space application center of the Chinese Academy of Sciences and deputy director of the integrated technology center, said: "the scientific experiment cabinet is equivalent to installing a scientific experiment system covering dozens of square meters into a cabinet of less than 2 cubic meters." Wang Ke said that in addition to developing advanced and reliable scientific experiment cabinets and other facilities according to aerospace standards, every space project also needs to conduct in-depth scientific research in advance and conduct high-level analysis of data and experimental samples afterwards, "Space science and applied research can not only help us understand the basic laws of physics and cosmology, but also improve the quality of human life on earth through biological, medical, material science and other research, but also make some knowledge and technical reserves for human beings to move towards deep space in the future." (outlook new era)