[Illustration Credit: NASA / Ames / JPL-Caltech]
If Milky way galaxy (in which our solar system resides) has 10 Billion earth size planets, then it follows that since in the universe there are Billions of galaxies, there are 100,000,000,000,000,000,000 earths out there!
But don’t get your hopes up, aliens from those earths are not going to start a 3rd party here. They are all millions of light years away from us.
A planet is not “Earth-like” because it happens to be about the same size as Earth. A planet is Earth-like by being about the same size and the RIGHT DISTANCE from its Star—otherwise it is toast (or an ice cube)....