Who are we? Why are we here? Where do we come from? These are among the most enduring and profound questions we can ask, and it is an essential part of human nature to want to find the answers. We can trace our ancestry back hundreds of thousands of years to the dawn of humankind, but in reality our story extends much further back: it starts with the beginning of the universe. Our universe began 13.7 billion years ago, and today it is filled with over 100 billion galaxies, each containing hundreds of billions of stars and a breathtaking array of wonders. In this groundbreaking new series, Professor Brian Cox tells the epic story of the universe and shows how it's story is also our story.