Which components comprise the totality of the cosmos?

Answer

All space, time, matter, and energy

The cosmos represents the entire physical universe considered as a unified whole. It is the sum total of all existing space, time, matter, and energy. When observing the cosmos, one is looking at the largest possible scale of existence, which includes billions of galaxies as well as phenomena such as dark energy and the ongoing expansion of space itself.

Which components comprise the totality of the cosmos?
galaxyastronomyuniversecosmos