The term 'Science of Universe' can be summarized as COSMOLOGY, which is a nine-letter word. COSMOLOGY is the scientific study of the origin, evolution, and eventual fate of the universe. It is a branch of astronomy that deals with the physical properties of the universe as a whole. Cosmologists study the structure, dynamics, and evolution of the universe, as well as its components such as galaxies, stars, and planets. They also investigate the laws of physics that govern the universe, and how these laws have shaped its evolution over time.