Analysis and Comparison of Three Exoplanet Searching Schemes

In retrospect, from ancient times to the present, human beings have never stopped exploring the secrets of the universe. With this in mind, exploring the universe means the progress of human science and technology, promoting the exchange and integration of human civilization and avoiding unknown risks and continuing human civilization. In the 1990s, humans officially launched the challenge to detect exoplanets. Since then, research on exoplanet detection has developed rapidly. On this basis, this study introduces the research history, development status and research results of exoplanet detection, comprehensively introduces mainstream exoplanet detection methods and representative projects, and elaborates on the principles, instruments, and research results of the three most widely used methods. Finally, this study summarizes the current problems and difficulties that restrict the development of exoplanets, and look forward to the development trends and bright prospects of future planetary exploration. These results provide guiding insights of further exploration of exoplanet searching.