Cosmology is the study of the universe as a whole, including its origin, evolution, and structure. It seeks to answer some of the most fundamental questions about our existence, such as how the universe began, what it is made of, and what its ultimate fate will be. Cosmology draws on a wide range of disciplines, from astronomy and physics to philosophy and mathematics. It has led to remarkable discoveries, such as the Big Bang theory, the cosmic microwave background radiation, and the existence of dark matter and dark energy. Understanding the cosmos on a large scale is a captivating and ongoing challenge for cosmologists, and it offers us new perspectives on our place in the universe.