An article accepted for publication in the journal “Publications of the Astronomical Society of Japan” reports the discovery of the exoplanet Ross 508 b, probably a super-Earth at the edge of ​​its star system’s habitable zone. A team of researchers led by Hiroki Harakawa used the IRD (InfraRed Doppler) instrument mounted on the Subaru Telescope to examine the star Ross 508, a red dwarf that has a mass that is only 18% of the Sun’s. The radial velocity method allowed to identify what from the collected data looks like a rocky planet with a mass that is about 4 times the Earth’s. This discovery confirms the value of infrared spectroscopic examinations of red dwarfs.