Explain what you learned about CMB in the Read It station. Answer here square

The Cosmic Microwave Background (CMB) is the thermal radiation left over from the Big Bang, which occurred approximately 13.8 billion years ago. It is a key component of the universe's history and provides crucial information about its early stages.In the Read It station, I learned that the CMB was discovered accidentally in 1964 by Arno Penzias and Robert Wilson, who were searching for radio waves from the Milky Way. They found a persistent background noise that was uniform in all directions and had a spectrum that matched the predictions of the CMB.The CMB is a form of electromagnetic radiation that is detectable across the entire electromagnetic spectrum, from radio waves to gamma rays. However, it is most commonly observed in the microwave region of the spectrum, which is why it is called the Cosmic Microwave Background.The CMB is important because it provides a snapshot of the universe when it was just 380,000 years old, shortly after the Big Bang. At this time, the universe was hot and dense, and the CMB was the thermal radiation emitted by the hot, dense plasma that filled the universe.The CMB is also important for understanding the large-scale structure of the universe. By studying the CMB, scientists can learn about the distribution of matter and energy in the universe, as well as the properties of dark matter and dark energy.Overall, the CMB is a fascinating and important topic in cosmology, and I am grateful to have had the opportunity to learn more about it in the Read It station.