Cosmology is the study of the evolution and structure of the universe.
The word Cosmology comes from the Greek words κοσμολογία, or “kosmos”, which means “universe”, and λογία, or “logia”, which means “study”.
Cosmology includes big questions.
How did the universe begin? Will the universe end? How will the universe end? How do the components of the universe interact? Does the universe have boundaries?
Today’s theories about the universe are built upon careful observation, study, and debate; mathematics and physics; and original thought.
Astronomy on the other hand, is the study of the physics, chemistry, and motion of celestial objects such as stars, planets, comets, and galaxies.