The Cosmic Microwave Background (CMB) is the faint afterglow of the Big Bang, pervading the entire universe. It consists of microwave radiation that has cooled to approximately 2.7 Kelvin due to the expansion of space since the early universe. The CMB carries valuable information about the early universe’s density fluctuations, providing insights into its composition, age, and evolution. By studying the CMB’s properties, astronomers can test cosmological models and refine our understanding of the universe’s origins and structure.
Come for the Scenery, Stay for the Stars