explain why a certain type of radiation led to the acceptance of Big Bang theory decades after the red shift of galaxies was first discovered, right 3 to 5 sentences

One type of radiation, known as the cosmic microwave background radiation, played a crucial role in solidifying the acceptance of the Big Bang theory. This radiation was first detected in 1965 and provided strong evidence in support of the theory, as it matched the predictions of the Big Bang model. The uniformity and temperature of this radiation confirmed the idea that the universe had originated from a hot, dense state billions of years ago. This discovery helped to reconcile various pieces of evidence, including the red shift of galaxies, and ultimately led to the widespread acceptance of the Big Bang theory in the scientific community.