Cosmology (noun)

1. The branch of science that deals with the origin, structure, and space-time relationships of the universe.
2. A particular theory or model of the universe.

Origin:

From greek κόσμος (kósmos) "universe" + -λογία (-logia) "study of".

Examples:

1. Modern cosmology is based on the theory of general relativity.
2. The cosmology of the ancient Egyptians was heavily influenced by their religious beliefs.
3. The Big Bang model is the most widely accepted cosmology among scientists.
4. The cosmology of the ancient Greeks was heavily influenced by their religious beliefs.
5. The study of cosmology tries to understand how the universe began and how it will end.