What did George Smoot help discover?

George Smoot is best known for his work in astrophysics, particularly for his role in the discovery of the Cosmic Microwave Background Radiation (CMB) in the 1990s. This radiation is a remnant from the Big Bang and provides crucial evidence for the Big Bang theory of the universe's origin. Smoot led the NASA Cosmic Background Explorer (COBE) satellite team, which measured the CMB's anisotropies, helping to deepen our understanding of the universe's structure and evolution. His contributions to cosmology were recognized with the Nobel Prize in Physics in 2006.