Cosmology easy def

Cosmological Missions & Instruments

Launched in November 1989, NASA's Cosmic Background Explorer(COBE) took precise measurements of radiation across the sky.
The mission operated until 1993.
Although NASA's Hubble Space Telescope is probably best known for its astounding images, a primary missionwas cosmological.
By more accurately measuring the distances to Cepheid variables, stars .

What does cosmology mean?

The study of the physical universe considered as a totality of phenomena in time and space.
The definition of cosmology is a science of how the universe started and how it is structured.
An example of cosmology is the study of the big bang theory.
The scientific study of the origin, evolution, and structure of the universe.