You searched for: “cosmology
1. The branch of astrophysics that studies the origin, evolution, and structure of the universe.
2. The metaphysical study of the origin and nature of the universe.
3. Etymology: derived from the Greek kosmos, "order, harmony, the world" plus logos, "word, discourse".

In the broadest sense of the word, cosmology is that branch of learning which studies the universe as an ordered system.

Cosmology is confined to a description of the salient features of the observed universe, in terms of such categories as space, time, and matter; leaving questions concerning the origin, inner nature, and purpose of the universe to the related branches of cosmogony (branch of astrophysics that studies the origin and evolution and structure of the universe), ontology (metaphysical, or the philosophical study of the nature of being and existence), and teleology (study of ultimate causes in nature).

(Greek: kosmos to cosmos; "world, universe"; from its "perfect order and arrangement"; to order, to arrange, to adorn; well-ordered, regular, arranged; skilled in adornment, which came into English as cosmetic.)
Word Entries at Get Words: “cosmology
1. The scientific study of the structure and evolution of the universe as a whole.
2. A field of study that brings together the natural sciences, particularly astronomy and physics, in a joint effort to understand the physical universe as a unified whole.
3. That branch of astronomy concerned with the origin, structure, content, and evolution of the universe.

Creation myths and the Big Bang are theories of cosmology.

A study of the origin and nature of the world.
This entry is located in the following unit: Philosophical Conceptions (page 1)