Cosmology studies how the history of the universe led to the stars, galaxies, and other features we can observe today.
Cosmology is the study of the origin, development, structure, history, and future of the entire universe..
In summary, cosmology is considered difficult for undergraduates because it involves complex mathematical models, abstract and theoretical concepts, an interdisciplinary nature, lack of experimental data, high-level mathematics, and a theoretical nature..
Cosmology is a branch of astronomy that involves the origin and evolution of the universe, from the Big Bang to today and on into the future.
According to NASA, the definition of cosmology is "the scientific study of the large scale properties of the universe as a whole.".
As discussed above, current cosmological models rely in part on extrapolations of well-tested local physics along with novel proposals, such as:
1.
Cosmology’s Standard Model Physical cosmology has achieved a consensus Standard Model (SM), based on extending the local physics governing gravity and the other forces to describe the overall structure of the universe and its evolution.
Book by Roger Penrose
