The CMB we see is from the same distance in every direction because it's all been traveling for the same amount of time. The universe is just homogeneous (the same everywhere), and it's large enough that light hasn't had enough time to cross it since the CMB was emitted. Third, the CMB doesn't date back to the beginning of the universe – although the time from the big bang/end of inflation to the emission of the CMB (around 380,000 years) is so much smaller than the time from the big bang to now (around 13.8 billion years) that this makes little difference.
We work out the age of the universe by fitting a cosmological model to a variety of evidence (including the detailed spectrum of the CMB), and then we say that the CMB was emitted 13.8 billion years ago because that's what the model implies. Second, we don't work out the age of the universe from the distance to the CMB (or the matter that emitted it). The light is right here (that's how we detect it), and the matter that emitted the light is roughly 47 billion light years away in the present era, if our cosmological model is correct. 'COSMIC MICROWAVE BACKGROUND RADIATION' ifadesini ingilizce dilinden çevirmeniz ve bir cümlede doru kullanmanz m gerekiyor Burada 'COSMIC MICROWAVE BACKGROUND RADIATION' - ingilizce-turkce çevirileri ve ingilizce çevirileri için arama motoru içeren birçok çevrilmi örnek cümle var. First, we do have good reason to think that the CMB was produced around 13.8 billion years ago, but that doesn't mean it's 13.8 billion light years away. Because the expanding universe has cooled since this primordial explosion, the background radiation is in the microwave region of the electromagnetic spectrum. This thermal radiation was emitted when the Universe became transparent to photons for the first time, when the Universe was about 400,000 years old. cosmic microwave background (CMB), also called cosmic background radiation, electromagnetic radiation filling the universe that is a residual effect of the big bang 13.8 billion years ago. The big bang is now orthodoxy, although without a theory. 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. The cosmic microwave background (CMB) is a faint glow in microwave radiation that is almost perfectly uniform across the sky. Cosmic microwave background is a sea of radiation that provides us with evidence for the big bang.
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