Cosmology focuses on:
* The origin and evolution of the universe: It investigates the Big Bang, the expansion of the universe, and the formation of stars, galaxies, and planets.
* The structure and composition of the universe: This includes the study of dark matter, dark energy, and the distribution of matter throughout the universe.
* The fundamental laws that govern the universe: Cosmologists seek to understand the physical laws that govern the behavior of the universe, including gravity, electromagnetism, and quantum mechanics.
Other related fields include:
* Astrophysics: The study of the physical properties and evolution of celestial objects, like stars, planets, and galaxies.
* Astrobiology: The study of life in the universe, including the search for extraterrestrial life.
* Astronomy: The observation and study of celestial objects and phenomena.