Cosmology bangla

What do cosmologists study?
Center for Astrophysics Harvard & Smithsonian cosmologists study the universe in many ways: Connecting theoretical models for the very early universe — cosmic inflation or an alternative scenario — with observable effects..
In philosophy, cosmology is the philosophical examination of the origin and nature of the universe.
Philosophical cosmology deals with deductive and inductive arguments and attempts to answer questions like "What is the nature of the universe?" and "How can we understand the universe in which we find ourselves?".

What do cosmologists study?