Physical cosmology is the scientific study of the large-scale structure and evolution of the Universe. There are many synonyms for this term, including astrophysics, cosmogony, and cosmology. Astrophysics refers to the branch of astronomy that deals with the physical properties of celestial bodies and phenomena. Cosmogony focuses on the origin and evolution of the Universe, including the creation of galaxies and other celestial bodies. Cosmology also deals with the origin and evolution of the Universe, but it also considers the nature of space and time, the question of whether the Universe is infinite or finite, and the possibility of a multiverse. Regardless of the term used, the study of physical cosmology is a fascinating and ever-evolving field of science.