Gliese 581 G (pronounced /ˈɡliːzə/) or Gl 581 G, named Flora, after the Roman goddess of flowers, is one of six extrasolar planets found around Gliese 581, an M3V red dwarf star approximately 20.5 light-years away from Earth in the constellation of Libra. The planet lies near the middle of the Goldilocks zone, or habitable zone of its parent star, providing for the presence of liquid water. The discovery of Gliese 581 G was announced in September 2010, and was believed to be the first Goldilocks planet ever found, the most Earth-like planet, and the best exoplanet candidate with the potential for harboring life found at the time. The planet was detected using radial velocity measurements combining the data from the HIRES instrument of the Keck 1 telescope and the HARPS instrument of ESO's