Nearby stars refer to stars that are located relatively close to our solar system, typically within a few tens of light-years. Research in this area focuses on studying the properties, characteristics, and behavior of these stars to gain a better understanding of stellar evolution, the formation of planetary systems, and the potential for finding habitable worlds. Scientists study nearby stars using a variety of methods, including spectroscopy, astrometry, and photometry, to determine their composition, mass, temperature, and age. By studying these stars, researchers can also investigate the potential presence of exoplanets orbiting around them, as well as the conditions for habitability on these planets. Overall, research on nearby stars is important for advancing our knowledge of the broader universe and potentially finding Earth-like planets that may harbor life.