Join Trinity’s Professor Luke O’Neill on the greatest journey of them all.From the very big to the very small – vast galaxies to microscopic atoms - travel through the wonders of the universe, the mysteries of the human body, and the tiny world of molecules.Discover the Irish scientists that have helped to shape our world and find out how to become one yourself. How do we measure the universe? Why do we need plants? How do our bodies repair themselves when we are ill?What species will exist on earth in a million years’ time?Discover the answers to these questions and a lot more in this thrilling and engrossing book packed with fascinating phenomena, vibrant illustrations, experiments you can do yourself, and heaps of fun facts.