Our Planet Is Among the First of Many, Many Earths
Throughout the universe, trapped in the halos of dark matter, there is enough planet-making material to create at least 1,000,000,000,000,000,000,000 more Earth-like planets. A billion trillion of them. In the Milky Way alone, that would mean another 5 billion Earth-like planets over time....
source: http://www.theatlantic.com/technology/archive/2015/10/all-the-future-earths/413017/ | November 1, 2015, 23:1:32