Cosmicmicrowave

The cosmic microwave background (CMB), also known as the relic radiation, is the faint cosmic background radiation that is fundamental to observational cosmology. It is a key piece of evidence for the Big Bang theory, providing a snapshot of the universe when it was about 380,000 years old. The CMB is uniformly distributed across the sky and has a temperature of approximately 2.725 Kelvin. In Hebrew, it is referred to as קוסמי קרינה מיקרוגל. The CMB was first predicted by Ralph Alpher, Hans Bethe, and George Gamow in 1948 and was accidentally discovered in 1965 by Arno Penzias and Robert Wilson, who were awarded the Nobel Prize in Physics for their findings. The CMB provides a wealth of information about the early universe, including its density, composition, and the distribution of matter. It is also a crucial tool for studying the large-scale structure of the universe and testing cosmological models.