When you are forming a thought you could go in a million directions. Or, maybe an infinite number of directions. I’m thinking right now of the beach. I’m thinking of the emerald blue water and white ...

Two possibilities exist: either the Universe is finite and has a size, or it’s infinite and goes on forever. Both possibilities have mind-bending implications. In another episode of Guide to Space, we ...

The universe we live in may not be the only one out there. In fact, our universe could be just one of an infinite number of universes making up a "multiverse." Though the concept may stretch credulity ...

The correct technical definition of infinity is that it is equal to some of its parts. For example, both the set of all real numbers and the set of all even numbers have infinite elements, yet it is ...

Forbes contributors publish independent expert analyses and insights. I write about physics, science, academia, and pop culture. A black hole is an object so compact (usually a collapsed star) that ...