Progress and Prospect of Exoplanetary Atmosphere and Habitable Exoplanet Researches

The most fundamental question driving the search and characterization of exoplanets is whether life and habitable planets are ubiquitous. More than 3000 exoplanets have been discovered since 1995, about 20 of which are potentially habitable, and this number could be increased dramatically in the next decade. Observation of the atmospheres of potentially habitable exoplanets is becoming the hot spot in planetary sciences. In this review we summarize the research progress regarding exoplanetary atmospheres, and propose a practical roadmap, the implementation of which could accelerate the development of exoplanetary sciences in China in the near future.