The CMB provides essential evidence for the Big Bang theory of the origin of the universe. It serves as a cornerstone for cosmology, helping scientists understand the early universe's conditions, its composition, and its subsequent evolution. The detailed measurements of the CMB, such as those by the Wilkinson Microwave Anisotropy Probe (WMAP) and the Planck satellite, have enabled precise determinations of the universe's age, geometry, and content.
