European astronomers using HARPS instrument on the 3.6-m telescope at ESO’s La Silla Observatory, Chile, have discovered an exoplanet with about the mass of the Earth orbiting the star Alpha Centauri B. This artist’s impression shows the planet orbiting the star Alpha Centauri B, a member of the triple star system that is the closest to Earth, Sun is visible to the upper right (ESO / L. Calçada) Alpha Centauri is one of the brightest stars in...
