The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates...

The heat death of the universe (also known as the Big Chill or Big Freeze) is a hypothesis on the ultimate fate of the universe, which suggests the universe...

The observable universe is a ball-shaped region of the universe consisting of all matter that can be observed from Earth or its space-based telescopes...

cosmology, the age of the universe is the time elapsed since the Big Bang. Astronomers have derived two different measurements of the age of the universe: a measurement...

The Big Bang is a physical theory that describes how the universe expanded from a primordial state of high density and temperature. It was first proposed...

The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant...

cosmology, the shape of the universe refers to both its local and global geometry. Local geometry is defined primarily by its curvature, while the global...

and the universe Cosmography – Science that maps the universe Chronology of the universe – History and future of the universe Ultimate fate of the universe –...

The expansion of the universe is the increase in distance between gravitationally unbound parts of the observable universe with time. It is an intrinsic...

cosmology is concerned with the study of the chronology of the universe. Physical cosmology is the study of the observable universe's origin, its large-scale...