Based on Kepler Data, There’s a 95% Chance of an Earth-Like Planet Within 20 Light-Years##Ciencia, Astronomía, Exoplanetas,Búsqueda de vida

https://www.universetoday.com/148667/based-on-kepler-data-theres-a-95-chance-of-an-earth-like-planet-within-20-light-years/