Dr. Ribas' work is focused on stellar astrophysics and it is stuctured in two main research lines. Firstly, he is interested in the study of stellar interiors from the observational point of view by means of eclipsing binary stars. The objective is to better understand the structure and evolution of stars within the entire possible range. Among the open problems he studies are the effects of convective overshooting in high-mass stars and the impact of magnetic fields on the properties of low-mass stars. He is also interested in eclipsing binaries in Local Group galaxies that can serve as distance indicators. In the second research line, he works on the various effects that the high-energy fluxes and particle emissions of stars have on their orbiting planets. Also, I analyze the dynamic evolution of planetary systems to understand their formation mechanisms.