> 10bn

“There are, at a conservative estimate, 100 billion stars in our own galaxy. With an average 1.6 planets per star observed so far, we can estimate that there are more than ten billion Earth-like, rocky planets in our own galaxy alone. Statistically, this makes the discovery of a life-sustaining planet very likely. We already know that many planets orbiting distant stars might be very much like those we find in our own solar system. All we need to do now is ascertain whether or not they support life. When we do, that will radically alter the understanding of our place in the Universe.” – Kai Staats, Exoplanets will become a reality” (Wired – The World in 2018)