A terrestrial planet candidate, Proxima b, has been discovered orbiting the red dwarf star Proxima Centauri, located 1.295 parsecs from Earth. This planet has a minimum mass of 1.3 Earth masses and an orbital period of approximately 11.2 days, placing it within the habitable zone of Proxima Centauri. The discovery was confirmed through Doppler measurements from the High Accuracy Radial velocity Planet Searcher (HARPS) and Ultraviolet and Visual Echelle Spectrograph (UVES) instruments at the European Southern Observatory (ESO). The analysis combined data from multiple campaigns, including the Pale Red Dot campaign, to confirm the signal with a false-alarm probability of less than 10^-7 and a Bayesian evidence ratio exceeding 10^6. The planet's orbital parameters are consistent across 16 years of observations, indicating a stable orbit. While the planet's habitability is still debated due to potential stellar activity and high X-ray fluxes, its location in the habitable zone suggests it could support liquid water. Further studies are needed to determine its atmospheric conditions and potential for sustaining life. The discovery highlights the potential for finding Earth-like planets around nearby stars and opens avenues for future observations and characterization.A terrestrial planet candidate, Proxima b, has been discovered orbiting the red dwarf star Proxima Centauri, located 1.295 parsecs from Earth. This planet has a minimum mass of 1.3 Earth masses and an orbital period of approximately 11.2 days, placing it within the habitable zone of Proxima Centauri. The discovery was confirmed through Doppler measurements from the High Accuracy Radial velocity Planet Searcher (HARPS) and Ultraviolet and Visual Echelle Spectrograph (UVES) instruments at the European Southern Observatory (ESO). The analysis combined data from multiple campaigns, including the Pale Red Dot campaign, to confirm the signal with a false-alarm probability of less than 10^-7 and a Bayesian evidence ratio exceeding 10^6. The planet's orbital parameters are consistent across 16 years of observations, indicating a stable orbit. While the planet's habitability is still debated due to potential stellar activity and high X-ray fluxes, its location in the habitable zone suggests it could support liquid water. Further studies are needed to determine its atmospheric conditions and potential for sustaining life. The discovery highlights the potential for finding Earth-like planets around nearby stars and opens avenues for future observations and characterization.