 The Five Ages of the Universe

"The Five Ages of the Universe" is a concept that outlines the long-term evolution of the universe, describing five distinct phases from its origin to its ultimate fate. This framework is often discussed in cosmology and is popularized by the book "The Five Ages of the Universe: Inside the Physics of Eternity" by Fred Adams and Gregory Laughlin. Here are the five ages as typically outlined: 1. **The Primordial Era**: This age begins with the Big Bang, around 13.