Second Earth

Earth is the planet the fleet finds and settles on at the end of the series finale "Daybreak." The episodes portray the Galactica launching a rescue mission to retrieve Hera Agathon from the "colony," a heavily armed and defended Cylon base located near a black hole. They manage to rescue Hera and, in the end, the fleet finds a new planet to settle on, which they come to call Earth (revealed to be the actual Earth).