Cosmic Microwave Background Radiation Map

This is a detailed map showcasing the faint temperature variations in the Cosmic Microwave Background radiation, which permeates the entire sky. This ancient light, a direct echo from the universe's infancy, offers invaluable clues about its origins, composition, and subsequent evolution. The subtle shifts in color across the map, from cooler blues to warmer yellows and reds, illustrate the tiny initial density fluctuations that eventually grew into the vast structures of galaxies and galaxy clusters we observe today.

cmb - cosmology - universe - big bang - radiation - early universe - sky map