Copernican principle

Our Universe is vast and mostly empty. Even if many of the billions of planets we suspect are out there have life, most of the cosmos is uninhabitable, and those worlds are unreachable by any means we know. That’s just within our galaxy, which is one of about 100 billion in the part of the […]

The mediocre universe… Depending on how you look at it, that is either a term of derision or an interesting, mind-warping concept. Cosmologists who are enamored of the theory that there are many, or perhaps infinite, universes like to look at our cosmic home and call it average, boring, run of the mill, vanilla. They […]