Originally, cosmology was a branch of philosophy devoted to understanding the nature of reality and the origin and structure of everything that exists. With the growth of astrophysics during the nineteenth and twentieth centuries, cosmology rapidly became a major area of research in astronomy and physics, and its focus narrowed to the origin and evolution of energy and matter in the universe as a whole. Cosmology today is concerned with the large-scale structure of the universe, including the... więcej
Salem Press Encyclopedia of Science, 2020. 6p.