Cosmology is the study of the origin and evolution of the Universe as a whole. The study of the observable features of the Universe, really the constituents of the Universe, is known as Cosmogony .
Cosmology is an interesting science in many respects.
Before we go on, let's make an observation about Universe versus universe . Well, because we are speaking about our Universe, and there is only one of our Universe, we use the capital. However, this cannot be helped and we must play the hand we are dealt. People view the Universe from different perspectives. In a sense, all are correct and perhaps each can contribute to our understanding of the Universe.