The universe is almost 13.799 billion years old and currently has radius of around 46.5 billion light-years. The CMB is visible at a distance of 13.8 billion light years in all directions from Earth, leading scientists to determine that this is the true age of the Universe. I really appreciate your help and time! Discovery of the Cosmic Microwave Background. So, there are several scientific discoveries that led scientists to accept the creation event, and one of the most interesting and famous is the discovery of the cosmic microwave background radiation. June 1963: Discovery of the Cosmic Microwave Background Sometimes the most stunning scientific discoveries are the least expected, and occur more by serendipity than by intent. The discovery of cosmic microwave background radiation constitutes a major development in modern physical cosmology.The cosmic background radiation was measured by Andrew McKellar in 1941 at an effective temperature of 2.3 K using CN stellar absorption lines observed by W. S. Adams. This month marks the 50th anniversary of the discovery of the Cosmic Microwave Background, which is the radiation left over from the birth of the universe. The Cosmic Microwave Background radiation, or CMB for short, is a faint glow of light that fills the universe, falling on Earth from every direction with nearly uniform intensity. In cosmology, the cosmic microwave background radiation is a form of electromagnetic radiation discovered in 1965 that fills the entire universe. B. Cosmic background radiation rules As a young undergraduate I heard of Penzias and Wil-son’s 1965 discovery of the 3 K background radiation and its interpretation by Dicke, Peebles, Roll, and Wilk-ingon 1965 , but not until two or three years later did I begin to understand the implications and opportunity it afforded. Fluctuations in 3K Background The COBE satellite has discovered fluctuations in the cosmic microwave background radiation with the use of a differential microwave radiometer. Theoretical work around 1950  showed the need for a CMB for consistency with the simplest … The existence of the CMB radiation was first predicted by Ralph Alpherin 1948 in connection with his research on Big Bang Nucleosynthesis undertaken together with Robert Herman and George Gamow. Hi, I have few questions about cosmic microwave background radiation (CMBD) and trying to find simple answer at a basic level. The discovery of cosmic microwave background radiation constitutes a major development in modern physical cosmology.The cosmic background radiation was measured by Andrew McKellar in 1941 at an effective temperature of 2.3 K using CN stellar absorption lines observed by W. S. Adams.Theoretical work around 1950 showed the need for a CMB for consistency with the simplest … The size of the fluctuations are ΔT/T = 6x10-6.This is just above the level at which the big bang cosmological calculations would have been in trouble. Here’s the history of how that discovery happened, from the … The pair agreed with Dicke to publish side-by-side letters in the Astrophysical Journal, with Penzias and Wilson describing their observations and Dicke suggesting the interpretation as the cosmic microwave background radiation (CMB), the radio remnant of the Big Bang.