Why does the cosmic microwave background (CMB) shine in low-energy microwave wavelengths? The trapped photons within the plasma of the earliest universe originally had wavelengths in the microwave band due to rapid inflation The CMB was originally emitted as high-energy gamma rays and x-rays, but the light has redshifted downward to lower-energy microwaves through time
Why does the cosmic microwave background (CMB) shine in low-energy microwave wavelengths? The trapped photons within the plasma of the earliest universe originally had wavelengths in the microwave band due to rapid inflation The CMB was originally emitted as high-energy gamma rays and x-rays, but the light has redshifted downward to lower-energy microwaves through time
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Transcribed Image Text:Why does the cosmic microwave background (CMB) shine in low-energy
microwave wavelengths?
O The trapped photons within the plasma of the earliest universe originally had
wavelengths in the microwave band due to rapid inflation
O The CMB was originally emitted as high-energy gamma rays and x-rays, but
the light has redshifted downward to lower-energy microwaves through time
When nuclei of H and He first combined with free electrons to create atoms,
photons of light were released as microwaves
The photons released in the CMB were intensely hot, with energy levels in
microwave wavelengths
The early universe 380,000 years after the Big Bang was cold (2.7 kelvins) the
temperature of microwave energy
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