Astronomy is the study of objects and phenomena about the Earth, while cosmology is a branch of astronomy that studies the origin of the universe and how it evolved. For example, the Big Bang, the origin of chemical elements, and ...

Astronomers need a doctorate to specialize in their field. Typically, an astronomer first obtains a degree in physics, astrophysics, or astronomy that includes courses in subjects such as physics, algebra, calculus, astronomy, and statistics. What are the 3 branches of ...